15252122631 has 16 divisors (see below), whose sum is σ = 20948578560. Its totient is φ = 9864646080.

The previous prime is 15252122621. The next prime is 15252122653. The reversal of 15252122631 is 13622125251.

It is not a de Polignac number, because 15252122631 - 2¹⁰ = 15252121607 is a prime.

It is a super-4 number, since 4×15252122631⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15252122621) 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, 324355 + ... + 368388.

It is an arithmetic number, because the mean of its divisors is an integer number (1309286160).

Almost surely, 2^15252122631 is an apocalyptic number.

15252122631 is a deficient number, since it is larger than the sum of its proper divisors (5696455929).

15252122631 is a wasteful number, since it uses less digits than its factorization.

15252122631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692966.

The product of its digits is 7200, while the sum is 30.

Adding to 15252122631 its reverse (13622125251), we get a palindrome (28874247882).

The spelling of 15252122631 in words is "fifteen billion, two hundred fifty-two million, one hundred twenty-two thousand, six hundred thirty-one".