57407652 has 18 divisors (see below), whose sum is σ = 145113878. Its totient is φ = 19135872.

The previous prime is 57407621. The next prime is 57407653. The reversal of 57407652 is 25670475.

It can be written as a sum of positive squares in only one way, i.e., 55264356 + 2143296 = 7434^2 + 1464^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1594657 = 57407652 / (5 + 7 + 4 + 0 + 7 + 6 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (57407653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 797293 + ... + 797364.

Almost surely, 2^57407652 is an apocalyptic number.

It is an amenable number.

57407652 is an abundant number, since it is smaller than the sum of its proper divisors (87706226).

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

57407652 is a wasteful number, since it uses less digits than its factorization.

57407652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594667 (or 1594662 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 57407652 is about 7576.7837503785. The cubic root of 57407652 is about 385.7653902892.

The spelling of 57407652 in words is "fifty-seven million, four hundred seven thousand, six hundred fifty-two".