57055851 has 12 divisors (see below), whose sum is σ = 83543928. Its totient is φ = 37515744.

The previous prime is 57055849. The next prime is 57055861. The reversal of 57055851 is 15855075.

57055851 is a `hidden beast` number, since 5 + 70 + 5 + 585 + 1 = 666.

It is not a de Polignac number, because 57055851 - 2¹ = 57055849 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57055811) 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, 42765 + ... + 44078.

It is an arithmetic number, because the mean of its divisors is an integer number (6961994).

Almost surely, 2^57055851 is an apocalyptic number.

57055851 is a deficient number, since it is larger than the sum of its proper divisors (26488077).

57055851 is a wasteful number, since it uses less digits than its factorization.

57055851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86922 (or 86919 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 36.

The square root of 57055851 is about 7553.5323524825. The cubic root of 57055851 is about 384.9757695438.

The spelling of 57055851 in words is "fifty-seven million, fifty-five thousand, eight hundred fifty-one".