55761057 has 24 divisors (see below), whose sum is σ = 89114688. Its totient is φ = 33314400.

The previous prime is 55761053. The next prime is 55761059. The reversal of 55761057 is 75016755.

It is not a de Polignac number, because 55761057 - 2² = 55761053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55761053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3063 + ... + 10995.

It is an arithmetic number, because the mean of its divisors is an integer number (3713112).

Almost surely, 2^55761057 is an apocalyptic number.

It is an amenable number.

55761057 is a deficient number, since it is larger than the sum of its proper divisors (33353631).

55761057 is a wasteful number, since it uses less digits than its factorization.

55761057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8021 (or 8018 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 55761057 is about 7467.3326563104. The cubic root of 55761057 is about 382.0413161273.

The spelling of 55761057 in words is "fifty-five million, seven hundred sixty-one thousand, fifty-seven".