57457547 has 24 divisors (see below), whose sum is σ = 69549120. Its totient is φ = 47295360.

The previous prime is 57457513. The next prime is 57457553. The reversal of 57457547 is 74575475.

It is not a de Polignac number, because 57457547 - 2¹⁶ = 57392011 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 57457498 and 57457507.

It is not an unprimeable number, because it can be changed into a prime (57457507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140279 + ... + 140687.

It is an arithmetic number, because the mean of its divisors is an integer number (2897880).

Almost surely, 2^57457547 is an apocalyptic number.

57457547 is a deficient number, since it is larger than the sum of its proper divisors (12091573).

57457547 is a wasteful number, since it uses less digits than its factorization.

57457547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 524 counting only the distinct ones).

The product of its digits is 686000, while the sum is 44.

The square root of 57457547 is about 7580.0756592530. The cubic root of 57457547 is about 385.8771186615.

The spelling of 57457547 in words is "fifty-seven million, four hundred fifty-seven thousand, five hundred forty-seven".