57457572 has 12 divisors (see below), whose sum is σ = 134067696. Its totient is φ = 19152520.

The previous prime is 57457571. The next prime is 57457573. The reversal of 57457572 is 27575475.

It is an interprime number because it is at equal distance from previous prime (57457571) and next prime (57457573).

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (57457571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2394054 + ... + 2394077.

It is an arithmetic number, because the mean of its divisors is an integer number (11172308).

Almost surely, 2^57457572 is an apocalyptic number.

It is an amenable number.

57457572 is an abundant number, since it is smaller than the sum of its proper divisors (76610124).

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

57457572 is a wasteful number, since it uses less digits than its factorization.

57457572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4788138 (or 4788136 counting only the distinct ones).

The product of its digits is 343000, while the sum is 42.

The square root of 57457572 is about 7580.0773083129. The cubic root of 57457572 is about 385.8771746270.

The spelling of 57457572 in words is "fifty-seven million, four hundred fifty-seven thousand, five hundred seventy-two".