57251280 has 40 divisors (see below), whose sum is σ = 177479712. Its totient is φ = 15266944.

The previous prime is 57251279. The next prime is 57251287. The reversal of 57251280 is 8215275.

57251280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57251287) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 119034 + ... + 119513.

Almost surely, 2^57251280 is an apocalyptic number.

It is an amenable number.

57251280 is an abundant number, since it is smaller than the sum of its proper divisors (120228432).

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

57251280 is a wasteful number, since it uses less digits than its factorization.

57251280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238563 (or 238557 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 57251280 is about 7566.4575595189. The cubic root of 57251280 is about 385.4148112434.

The spelling of 57251280 in words is "fifty-seven million, two hundred fifty-one thousand, two hundred eighty".