57258561 has 4 divisors (see below), whose sum is σ = 76344752. Its totient is φ = 38172372.

The previous prime is 57258559. The next prime is 57258577. The reversal of 57258561 is 16585275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57258561 - 2¹ = 57258559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57251561) 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, 9543091 + ... + 9543096.

It is an arithmetic number, because the mean of its divisors is an integer number (19086188).

Almost surely, 2^57258561 is an apocalyptic number.

It is an amenable number.

57258561 is a deficient number, since it is larger than the sum of its proper divisors (19086191).

57258561 is a wasteful number, since it uses less digits than its factorization.

57258561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19086190.

The product of its digits is 84000, while the sum is 39.

The square root of 57258561 is about 7566.9386808669. The cubic root of 57258561 is about 385.4311490807.

The spelling of 57258561 in words is "fifty-seven million, two hundred fifty-eight thousand, five hundred sixty-one".