57551970 has 160 divisors (see below), whose sum is σ = 174244608. Its totient is φ = 12117504.

The previous prime is 57551947. The next prime is 57551981. The reversal of 57551970 is 7915575.

57551970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 in 79 ways as a sum of consecutive naturals, for example, 1224487 + ... + 1224533.

Almost surely, 2^57551970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57551970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87122304).

57551970 is an abundant number, since it is smaller than the sum of its proper divisors (116692638).

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

57551970 is a wasteful number, since it uses less digits than its factorization.

57551970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 55125, while the sum is 39.

The square root of 57551970 is about 7586.3014704136. The cubic root of 57551970 is about 386.0883803459.

The spelling of 57551970 in words is "fifty-seven million, five hundred fifty-one thousand, nine hundred seventy".