57556461 has 4 divisors (see below), whose sum is σ = 76741952. Its totient is φ = 38370972.

The previous prime is 57556439. The next prime is 57556483. The reversal of 57556461 is 16465575.

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 an interprime number because it is at equal distance from previous prime (57556439) and next prime (57556483).

It is not a de Polignac number, because 57556461 - 2⁶ = 57556397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57556361) 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, 9592741 + ... + 9592746.

It is an arithmetic number, because the mean of its divisors is an integer number (19185488).

Almost surely, 2^57556461 is an apocalyptic number.

It is an amenable number.

57556461 is a deficient number, since it is larger than the sum of its proper divisors (19185491).

57556461 is a wasteful number, since it uses less digits than its factorization.

57556461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19185490.

The product of its digits is 126000, while the sum is 39.

The square root of 57556461 is about 7586.5974586767. The cubic root of 57556461 is about 386.0984227350.

The spelling of 57556461 in words is "fifty-seven million, five hundred fifty-six thousand, four hundred sixty-one".