57090788 has 6 divisors (see below), whose sum is σ = 99908886. Its totient is φ = 28545392.

The previous prime is 57090773. The next prime is 57090823. The reversal of 57090788 is 88709075.

57090788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 36096064 + 20994724 = 6008^2 + 4582^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7136345 + ... + 7136352.

It is an arithmetic number, because the mean of its divisors is an integer number (16651481).

Almost surely, 2^57090788 is an apocalyptic number.

It is an amenable number.

57090788 is a deficient number, since it is larger than the sum of its proper divisors (42818098).

57090788 is a wasteful number, since it uses less digits than its factorization.

57090788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14272701 (or 14272699 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 57090788 is about 7555.8446251892. The cubic root of 57090788 is about 385.0543308944.

The spelling of 57090788 in words is "fifty-seven million, ninety thousand, seven hundred eighty-eight".