57561078 has 16 divisors (see below), whose sum is σ = 116199360. Its totient is φ = 19007496.

The previous prime is 57561043. The next prime is 57561083. The reversal of 57561078 is 87016575.

It is a zygodrome in base 8.

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, 44188 + ... + 45471.

It is an arithmetic number, because the mean of its divisors is an integer number (7262460).

Almost surely, 2^57561078 is an apocalyptic number.

57561078 is an abundant number, since it is smaller than the sum of its proper divisors (58638282).

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

57561078 is a wasteful number, since it uses less digits than its factorization.

57561078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89771.

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 57561078 is about 7586.9017391818. The cubic root of 57561078 is about 386.1087463298.

The spelling of 57561078 in words is "fifty-seven million, five hundred sixty-one thousand, seventy-eight".