52646631 has 4 divisors (see below), whose sum is σ = 70195512. Its totient is φ = 35097752.

The previous prime is 52646621. The next prime is 52646639. The reversal of 52646631 is 13664625.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52646631 - 2¹⁸ = 52384487 is a prime.

It is a super-2 number, since 2×52646631² = 5543335511300322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52646592 and 52646601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52646639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8774436 + ... + 8774441.

It is an arithmetic number, because the mean of its divisors is an integer number (17548878).

Almost surely, 2^52646631 is an apocalyptic number.

52646631 is a deficient number, since it is larger than the sum of its proper divisors (17548881).

52646631 is a wasteful number, since it uses less digits than its factorization.

52646631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17548880.

The product of its digits is 25920, while the sum is 33.

The square root of 52646631 is about 7255.7998180766. The cubic root of 52646631 is about 374.7918987606.

The spelling of 52646631 in words is "fifty-two million, six hundred forty-six thousand, six hundred thirty-one".