52690190 has 48 divisors (see below), whose sum is σ = 111004992. Its totient is φ = 17954496.

The previous prime is 52690189. The next prime is 52690199. The reversal of 52690190 is 9109625.

It is a super-2 number, since 2×52690190² = 5552512244472200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52690199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143387 + ... + 143753.

It is an arithmetic number, because the mean of its divisors is an integer number (2312604).

Almost surely, 2^52690190 is an apocalyptic number.

52690190 is an abundant number, since it is smaller than the sum of its proper divisors (58314802).

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

52690190 is a wasteful number, since it uses less digits than its factorization.

52690190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 52690190 is about 7258.8008651567. The cubic root of 52690190 is about 374.8952359199.

The spelling of 52690190 in words is "fifty-two million, six hundred ninety thousand, one hundred ninety".