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55295761 = 307917959
BaseRepresentation
bin1101001011101…
…1111100010001
310212001022112011
43102323330101
5103123431021
65253102521
71241002063
oct322737421
9125038464
1055295761
1129238584
1216627a41
13b5c09b1
1474b5733
154cc3de1
hex34bbf11

55295761 has 4 divisors (see below), whose sum is σ = 55316800. Its totient is φ = 55274724.

The previous prime is 55295753. The next prime is 55295767. The reversal of 55295761 is 16759255.

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: 16759255 = 53351851.

It is a cyclic number.

It is not a de Polignac number, because 55295761 - 23 = 55295753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55295767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5901 + ... + 12058.

It is an arithmetic number, because the mean of its divisors is an integer number (13829200).

Almost surely, 255295761 is an apocalyptic number.

It is an amenable number.

55295761 is a deficient number, since it is larger than the sum of its proper divisors (21039).

55295761 is a wasteful number, since it uses less digits than its factorization.

55295761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21038.

The product of its digits is 94500, while the sum is 40.

The square root of 55295761 is about 7436.1119545096. Note that the first 3 decimals coincide. The cubic root of 55295761 is about 380.9757035872.

The spelling of 55295761 in words is "fifty-five million, two hundred ninety-five thousand, seven hundred sixty-one".

Divisors: 1 3079 17959 55295761