57097560 has 128 divisors (see below), whose sum is σ = 195410880. Its totient is φ = 13221888.

The previous prime is 57097559. The next prime is 57097571. The reversal of 57097560 is 6579075.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25444 + ... + 27596.

Almost surely, 2^57097560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57097560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97705440).

57097560 is an abundant number, since it is smaller than the sum of its proper divisors (138313320).

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

57097560 is a wasteful number, since it uses less digits than its factorization.

57097560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197 (or 2193 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 57097560 is about 7556.2927418146. The cubic root of 57097560 is about 385.0695550950.

The spelling of 57097560 in words is "fifty-seven million, ninety-seven thousand, five hundred sixty".