57018850 has 108 divisors (see below), whose sum is σ = 134253126. Its totient is φ = 17902080.

The previous prime is 57018847. The next prime is 57018859. The reversal of 57018850 is 5881075.

It can be written as a sum of positive squares in 9 ways, for example, as 32387481 + 24631369 = 5691^2 + 4963^2 .

It is a super-2 number, since 2×57018850² = 6502298510645000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57018859) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1541032 + ... + 1541068.

Almost surely, 2^57018850 is an apocalyptic number.

57018850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57018850 is an abundant number, since it is smaller than the sum of its proper divisors (77234276).

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

57018850 is a wasteful number, since it uses less digits than its factorization.

57018850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 57018850 is about 7551.0827038247. The cubic root of 57018850 is about 384.8925319879.

Multiplying 57018850 by its sum of digits (34), we get a square (1938640900 = 44030²).

57018850 divided by its sum of digits (34) gives a square (1677025 = 1295²).

The spelling of 57018850 in words is "fifty-seven million, eighteen thousand, eight hundred fifty".