57505722 has 16 divisors (see below), whose sum is σ = 117459072. Its totient is φ = 18760640.

The previous prime is 57505717. The next prime is 57505741. The reversal of 57505722 is 22750575.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 101679 + ... + 102242.

It is an arithmetic number, because the mean of its divisors is an integer number (7341192).

Almost surely, 2^57505722 is an apocalyptic number.

57505722 is an abundant number, since it is smaller than the sum of its proper divisors (59953350).

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

57505722 is a wasteful number, since it uses less digits than its factorization.

57505722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203973.

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 57505722 is about 7583.2527321724. The cubic root of 57505722 is about 385.9849341306.

The spelling of 57505722 in words is "fifty-seven million, five hundred five thousand, seven hundred twenty-two".