57408550 has 12 divisors (see below), whose sum is σ = 106779996. Its totient is φ = 22963400.

The previous prime is 57408499. The next prime is 57408551. The reversal of 57408550 is 5580475.

It is a super-2 number, since 2×57408550² = 6591483226205000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57408551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 574036 + ... + 574135.

It is an arithmetic number, because the mean of its divisors is an integer number (8898333).

Almost surely, 2^57408550 is an apocalyptic number.

57408550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57408550 is a deficient number, since it is larger than the sum of its proper divisors (49371446).

57408550 is a wasteful number, since it uses less digits than its factorization.

57408550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148183 (or 1148178 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 57408550 is about 7576.8430101197. The cubic root of 57408550 is about 385.7674017256.

The spelling of 57408550 in words is "fifty-seven million, four hundred eight thousand, five hundred fifty".