57028755 has 16 divisors (see below), whose sum is σ = 104281344. Its totient is φ = 26070240.

The previous prime is 57028733. The next prime is 57028759. The reversal of 57028755 is 55782075.

It is not a de Polignac number, because 57028755 - 2⁵ = 57028723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57028759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271461 + ... + 271670.

It is an arithmetic number, because the mean of its divisors is an integer number (6517584).

Almost surely, 2^57028755 is an apocalyptic number.

57028755 is a deficient number, since it is larger than the sum of its proper divisors (47252589).

57028755 is a wasteful number, since it uses less digits than its factorization.

57028755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543146.

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 57028755 is about 7551.7385415545. The cubic root of 57028755 is about 384.9148178331.

The spelling of 57028755 in words is "fifty-seven million, twenty-eight thousand, seven hundred fifty-five".