52018631 has 8 divisors (see below), whose sum is σ = 60118560. Its totient is φ = 44085888.

The previous prime is 52018619. The next prime is 52018667. The reversal of 52018631 is 13681025.

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

It is not a de Polignac number, because 52018631 - 2¹⁰ = 52017607 is a prime.

It is a super-2 number, since 2×52018631² = 5411875942228322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52018631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52018601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41126 + ... + 42371.

It is an arithmetic number, because the mean of its divisors is an integer number (7514820).

Almost surely, 2^52018631 is an apocalyptic number.

52018631 is a deficient number, since it is larger than the sum of its proper divisors (8099929).

52018631 is an equidigital number, since it uses as much as digits as its factorization.

52018631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83593.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 52018631 is about 7212.3942626565. The cubic root of 52018631 is about 373.2956875483.

Adding to 52018631 its reverse (13681025), we get a palindrome (65699656).

The spelling of 52018631 in words is "fifty-two million, eighteen thousand, six hundred thirty-one".