51898600 has 48 divisors (see below), whose sum is σ = 129952620. Its totient is φ = 19161600.

The previous prime is 51898591. The next prime is 51898601. The reversal of 51898600 is 689815.

It can be written as a sum of positive squares in 6 ways, for example, as 21846276 + 30052324 = 4674^2 + 5482^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51898600.

It is not an unprimeable number, because it can be changed into a prime (51898601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7381 + ... + 12580.

Almost surely, 2^51898600 is an apocalyptic number.

51898600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51898600 is an abundant number, since it is smaller than the sum of its proper divisors (78054020).

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

51898600 is a wasteful number, since it uses less digits than its factorization.

51898600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19990 (or 19981 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 51898600 is about 7204.0682950677. The cubic root of 51898600 is about 373.0083445869.

The spelling of 51898600 in words is "fifty-one million, eight hundred ninety-eight thousand, six hundred".