57887280 has 120 divisors (see below), whose sum is σ = 212106960. Its totient is φ = 14031360.

The previous prime is 57887273. The next prime is 57887293. The reversal of 57887280 is 8278875.

It is a happy number.

57887280 is a `hidden beast` number, since 578 + 8 + 72 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4266 + ... + 11574.

It is an arithmetic number, because the mean of its divisors is an integer number (1767558).

Almost surely, 2^57887280 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 57887280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106053480).

57887280 is an abundant number, since it is smaller than the sum of its proper divisors (154219680).

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

57887280 is a wasteful number, since it uses less digits than its factorization.

57887280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7339 (or 7330 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 57887280 is about 7608.3690762213. The cubic root of 57887280 is about 386.8367398220.

The spelling of 57887280 in words is "fifty-seven million, eight hundred eighty-seven thousand, two hundred eighty".