57878553 has 16 divisors (see below), whose sum is σ = 78771200. Its totient is φ = 37792656.

The previous prime is 57878537. The next prime is 57878567. The reversal of 57878553 is 35587875.

It is a happy number.

It is not a de Polignac number, because 57878553 - 2⁴ = 57878537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57878533) 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, 39276 + ... + 40722.

It is an arithmetic number, because the mean of its divisors is an integer number (4923200).

Almost surely, 2^57878553 is an apocalyptic number.

It is an amenable number.

57878553 is a deficient number, since it is larger than the sum of its proper divisors (20892647).

57878553 is a wasteful number, since it uses less digits than its factorization.

57878553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716.

The product of its digits is 1176000, while the sum is 48.

The square root of 57878553 is about 7607.7955414167. The cubic root of 57878553 is about 386.8172992017.

The spelling of 57878553 in words is "fifty-seven million, eight hundred seventy-eight thousand, five hundred fifty-three".