57481544 has 8 divisors (see below), whose sum is σ = 107777910. Its totient is φ = 28740768.

The previous prime is 57481537. The next prime is 57481547. The reversal of 57481544 is 44518475.

It can be written as a sum of positive squares in only one way, i.e., 49984900 + 7496644 = 7070^2 + 2738^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 57481498 and 57481507.

It is not an unprimeable number, because it can be changed into a prime (57481547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3592589 + ... + 3592604.

Almost surely, 2^57481544 is an apocalyptic number.

It is an amenable number.

57481544 is a deficient number, since it is larger than the sum of its proper divisors (50296366).

57481544 is a wasteful number, since it uses less digits than its factorization.

57481544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7185199 (or 7185195 counting only the distinct ones).

The product of its digits is 89600, while the sum is 38.

The square root of 57481544 is about 7581.6583937817. The cubic root of 57481544 is about 385.9308313872.

The spelling of 57481544 in words is "fifty-seven million, four hundred eighty-one thousand, five hundred forty-four".