52231690 has 16 divisors (see below), whose sum is σ = 107448192. Its totient is φ = 17907984.

The previous prime is 52231649. The next prime is 52231693. The reversal of 52231690 is 9613225.

It is a super-2 number, since 2×52231690² = 5456298880512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52231693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373014 + ... + 373153.

It is an arithmetic number, because the mean of its divisors is an integer number (6715512).

Almost surely, 2^52231690 is an apocalyptic number.

52231690 is an abundant number, since it is smaller than the sum of its proper divisors (55216502).

52231690 is a wasteful number, since it uses less digits than its factorization.

52231690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746181.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 52231690 is about 7227.1495072400. The cubic root of 52231690 is about 373.8046440836.

The spelling of 52231690 in words is "fifty-two million, two hundred thirty-one thousand, six hundred ninety".