57255366 has 16 divisors (see below), whose sum is σ = 130869504. Its totient is φ = 16358664.

The previous prime is 57255343. The next prime is 57255377. The reversal of 57255366 is 66355275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681570 + ... + 681653.

It is an arithmetic number, because the mean of its divisors is an integer number (8179344).

Almost surely, 2^57255366 is an apocalyptic number.

57255366 is an abundant number, since it is smaller than the sum of its proper divisors (73614138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57255366 is a wasteful number, since it uses less digits than its factorization.

57255366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363235.

The product of its digits is 189000, while the sum is 39.

The square root of 57255366 is about 7566.7275621632. The cubic root of 57255366 is about 385.4239799901.

Subtracting 57255366 from its reverse (66355275), we obtain a palindrome (9099909).

The spelling of 57255366 in words is "fifty-seven million, two hundred fifty-five thousand, three hundred sixty-six".