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61025953 = 154939397
BaseRepresentation
bin1110100011001…
…0111010100001
311020211102212111
43220302322201
5111110312303
610015555321
71340466142
oct350627241
9136742774
1061025953
11314a177a
121852bb41
13c848c41
148167ac9
155556b6d
hex3a32ea1

61025953 has 4 divisors (see below), whose sum is σ = 61066900. Its totient is φ = 60985008.

The previous prime is 61025941. The next prime is 61025977. The reversal of 61025953 is 35952016.

61025953 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.

It can be written as a sum of positive squares in 2 ways, for example, as 32638369 + 28387584 = 5713^2 + 5328^2 .

It is a cyclic number.

It is not a de Polignac number, because 61025953 - 29 = 61025441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61025983) 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, 18150 + ... + 21247.

It is an arithmetic number, because the mean of its divisors is an integer number (15266725).

Almost surely, 261025953 is an apocalyptic number.

It is an amenable number.

61025953 is a deficient number, since it is larger than the sum of its proper divisors (40947).

61025953 is a wasteful number, since it uses less digits than its factorization.

61025953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40946.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 61025953 is about 7811.9109697948. The cubic root of 61025953 is about 393.7055376687.

Adding to 61025953 its reverse (35952016), we get a palindrome (96977969).

The spelling of 61025953 in words is "sixty-one million, twenty-five thousand, nine hundred fifty-three".

Divisors: 1 1549 39397 61025953