57628255 has 4 divisors (see below), whose sum is σ = 69153912. Its totient is φ = 46102600.

The previous prime is 57628253. The next prime is 57628261. The reversal of 57628255 is 55282675.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57628255 - 2¹ = 57628253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57628253) 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, 5762821 + ... + 5762830.

It is an arithmetic number, because the mean of its divisors is an integer number (17288478).

Almost surely, 2^57628255 is an apocalyptic number.

57628255 is a deficient number, since it is larger than the sum of its proper divisors (11525657).

57628255 is a wasteful number, since it uses less digits than its factorization.

57628255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11525656.

The product of its digits is 168000, while the sum is 40.

The square root of 57628255 is about 7591.3276177491. The cubic root of 57628255 is about 386.2588914422.

The spelling of 57628255 in words is "fifty-seven million, six hundred twenty-eight thousand, two hundred fifty-five".