52645631 has 8 divisors (see below), whose sum is σ = 54074064. Its totient is φ = 51226560.

The previous prime is 52645627. The next prime is 52645633. The reversal of 52645631 is 13654625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52645631 - 2² = 52645627 is a prime.

It is a super-2 number, since 2×52645631² = 5543124926776322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52645633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9905 + ... + 14261.

It is an arithmetic number, because the mean of its divisors is an integer number (6759258).

Almost surely, 2^52645631 is an apocalyptic number.

52645631 is a deficient number, since it is larger than the sum of its proper divisors (1428433).

52645631 is a wasteful number, since it uses less digits than its factorization.

52645631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4681.

The product of its digits is 21600, while the sum is 32.

The square root of 52645631 is about 7255.7309073587. The cubic root of 52645631 is about 374.7895257422.

The spelling of 52645631 in words is "fifty-two million, six hundred forty-five thousand, six hundred thirty-one".