57457770 has 16 divisors (see below), whose sum is σ = 137898720. Its totient is φ = 15322064.

The previous prime is 57457759. The next prime is 57457817. The reversal of 57457770 is 7775475.

It is a happy number.

It is a Smith number, since the sum of its digits (42) 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, 957600 + ... + 957659.

It is an arithmetic number, because the mean of its divisors is an integer number (8618670).

Almost surely, 2^57457770 is an apocalyptic number.

57457770 is an abundant number, since it is smaller than the sum of its proper divisors (80440950).

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

57457770 is a wasteful number, since it uses less digits than its factorization.

57457770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915269.

The product of its (nonzero) digits is 240100, while the sum is 42.

The square root of 57457770 is about 7580.0903688545. The cubic root of 57457770 is about 385.8776178735.

The spelling of 57457770 in words is "fifty-seven million, four hundred fifty-seven thousand, seven hundred seventy".