57278032051 has 16 divisors (see below), whose sum is σ = 63378146304. Its totient is φ = 51534693504.

The previous prime is 57278032039. The next prime is 57278032057. The reversal of 57278032051 is 15023087275.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 57278032051 - 2²¹ = 57275934899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57278031995 and 57278032013.

It is not an unprimeable number, because it can be changed into a prime (57278032057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799215 + ... + 867928.

It is an arithmetic number, because the mean of its divisors is an integer number (3961134144).

Almost surely, 2^57278032051 is an apocalyptic number.

57278032051 is a deficient number, since it is larger than the sum of its proper divisors (6100114253).

57278032051 is a wasteful number, since it uses less digits than its factorization.

57278032051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667250.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 57278032051 in words is "fifty-seven billion, two hundred seventy-eight million, thirty-two thousand, fifty-one".