52690446 has 32 divisors (see below), whose sum is σ = 123979680. Its totient is φ = 16530048.

The previous prime is 52690441. The next prime is 52690457. The reversal of 52690446 is 64409625.

52690446 is a `hidden beast` number, since 526 + 90 + 4 + 46 = 666.

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 52690446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52690441) 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, 27781 + ... + 29616.

It is an arithmetic number, because the mean of its divisors is an integer number (3874365).

Almost surely, 2^52690446 is an apocalyptic number.

52690446 is an abundant number, since it is smaller than the sum of its proper divisors (71289234).

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

52690446 is a wasteful number, since it uses less digits than its factorization.

52690446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57425 (or 57419 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 52690446 is about 7258.8184989019. The cubic root of 52690446 is about 374.8958430729.

The spelling of 52690446 in words is "fifty-two million, six hundred ninety thousand, four hundred forty-six".