57747648 has 56 divisors (see below), whose sum is σ = 174621952. Its totient is φ = 16498944.

The previous prime is 57747647. The next prime is 57747653. The reversal of 57747648 is 84674775.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 57747597 and 57747606.

It is not an unprimeable number, because it can be changed into a prime (57747647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20140 + ... + 22827.

Almost surely, 2^57747648 is an apocalyptic number.

It is an amenable number.

57747648 is an abundant number, since it is smaller than the sum of its proper divisors (116874304).

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

57747648 is a wasteful number, since it uses less digits than its factorization.

57747648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42989 (or 42979 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 48.

The square root of 57747648 is about 7599.1873249710. The cubic root of 57747648 is about 386.5254551074.

The spelling of 57747648 in words is "fifty-seven million, seven hundred forty-seven thousand, six hundred forty-eight".