51892190 has 32 divisors (see below), whose sum is σ = 106997760. Its totient is φ = 17750304.

The previous prime is 51892189. The next prime is 51892193. The reversal of 51892190 is 9129815.

It is a super-2 number, since 2×51892190² = 5385598765992200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51892190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51892193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59699 + ... + 60561.

It is an arithmetic number, because the mean of its divisors is an integer number (3343680).

Almost surely, 2^51892190 is an apocalyptic number.

51892190 is an abundant number, since it is smaller than the sum of its proper divisors (55105570).

51892190 is a wasteful number, since it uses less digits than its factorization.

51892190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 51892190 is about 7203.6233938206. The cubic root of 51892190 is about 372.9929871917.

The spelling of 51892190 in words is "fifty-one million, eight hundred ninety-two thousand, one hundred ninety".