57061755 has 12 divisors (see below), whose sum is σ = 98907120. Its totient is φ = 30432912.

The previous prime is 57061751. The next prime is 57061757. The reversal of 57061755 is 55716075.

It is not a de Polignac number, because 57061755 - 2² = 57061751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57061751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 633975 + ... + 634064.

It is an arithmetic number, because the mean of its divisors is an integer number (8242260).

Almost surely, 2^57061755 is an apocalyptic number.

57061755 is a deficient number, since it is larger than the sum of its proper divisors (41845365).

57061755 is a wasteful number, since it uses less digits than its factorization.

57061755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268050 (or 1268047 counting only the distinct ones).

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

The square root of 57061755 is about 7553.9231529054. The cubic root of 57061755 is about 384.9890478697.

The spelling of 57061755 in words is "fifty-seven million, sixty-one thousand, seven hundred fifty-five".