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53895961 = 77699423
BaseRepresentation
bin1100110110011…
…0001100011001
310202102012100201
43031212030121
5102244132321
65203102201
71223052040
oct315461431
9122365321
1053895961
1128471919
1216071961
13b220802
14722d557
154ae9291
hex3366319

53895961 has 4 divisors (see below), whose sum is σ = 61595392. Its totient is φ = 46196532.

The previous prime is 53895931. The next prime is 53895979. The reversal of 53895961 is 16959835.

53895961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16959835 = 53391967.

It is a cyclic number.

It is not a de Polignac number, because 53895961 - 29 = 53895449 is a prime.

It is a super-2 number, since 2×538959612 = 5809549224227042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53895931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3849705 + ... + 3849718.

It is an arithmetic number, because the mean of its divisors is an integer number (15398848).

Almost surely, 253895961 is an apocalyptic number.

It is an amenable number.

53895961 is a deficient number, since it is larger than the sum of its proper divisors (7699431).

53895961 is an equidigital number, since it uses as much as digits as its factorization.

53895961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699430.

The product of its digits is 291600, while the sum is 46.

The square root of 53895961 is about 7341.3868580807. The cubic root of 53895961 is about 377.7334164525.

The spelling of 53895961 in words is "fifty-three million, eight hundred ninety-five thousand, nine hundred sixty-one".

Divisors: 1 7 7699423 53895961