51626190 has 64 divisors (see below), whose sum is σ = 154483200. Its totient is φ = 10727040.

The previous prime is 51626189. The next prime is 51626207. The reversal of 51626190 is 9162615.

It is a super-2 number, since 2×51626190² = 5330526987832200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8865 + ... + 13484.

It is an arithmetic number, because the mean of its divisors is an integer number (2413800).

Almost surely, 2^51626190 is an apocalyptic number.

51626190 is an abundant number, since it is smaller than the sum of its proper divisors (102857010).

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

51626190 is a wasteful number, since it uses less digits than its factorization.

51626190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22377.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 51626190 is about 7185.1367419138. The cubic root of 51626190 is about 372.3545729028.

The spelling of 51626190 in words is "fifty-one million, six hundred twenty-six thousand, one hundred ninety".