52633686 has 32 divisors (see below), whose sum is σ = 126639360. Its totient is φ = 14246496.

The previous prime is 52633681. The next prime is 52633687. The reversal of 52633686 is 68633625.

52633686 = 9² + 10² + ... + 540².

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52633681) 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, 32181 + ... + 33776.

It is an arithmetic number, because the mean of its divisors is an integer number (3957480).

Almost surely, 2^52633686 is an apocalyptic number.

52633686 is an abundant number, since it is smaller than the sum of its proper divisors (74005674).

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

52633686 is a wasteful number, since it uses less digits than its factorization.

52633686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65988.

The product of its digits is 155520, while the sum is 39.

The square root of 52633686 is about 7254.9077182277. The cubic root of 52633686 is about 374.7611777138.

The spelling of 52633686 in words is "fifty-two million, six hundred thirty-three thousand, six hundred eighty-six".