51899202 has 12 divisors (see below), whose sum is σ = 112448310. Its totient is φ = 17299728.

The previous prime is 51899189. The next prime is 51899209. The reversal of 51899202 is 20299815.

It can be written as a sum of positive squares in only one way, i.e., 48734361 + 3164841 = 6981^2 + 1779^2 .

It is not an unprimeable number, because it can be changed into a prime (51899209) 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, 1441627 + ... + 1441662.

Almost surely, 2^51899202 is an apocalyptic number.

51899202 is an abundant number, since it is smaller than the sum of its proper divisors (60549108).

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

51899202 is a wasteful number, since it uses less digits than its factorization.

51899202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883297 (or 2883294 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 51899202 is about 7204.1100768936. The cubic root of 51899202 is about 373.0097868233.

The spelling of 51899202 in words is "fifty-one million, eight hundred ninety-nine thousand, two hundred two".