15525115023 has 32 divisors (see below), whose sum is σ = 24804034560. Its totient is φ = 8526371040.

The previous prime is 15525115019. The next prime is 15525115033. The reversal of 15525115023 is 32051152551.

It is not a de Polignac number, because 15525115023 - 2² = 15525115019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15525115033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 523861 + ... + 552702.

It is an arithmetic number, because the mean of its divisors is an integer number (775126080).

Almost surely, 2^15525115023 is an apocalyptic number.

15525115023 is a deficient number, since it is larger than the sum of its proper divisors (9278919537).

15525115023 is a wasteful number, since it uses less digits than its factorization.

15525115023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076619.

The product of its (nonzero) digits is 7500, while the sum is 30.

Adding to 15525115023 its reverse (32051152551), we get a palindrome (47576267574).

The spelling of 15525115023 in words is "fifteen billion, five hundred twenty-five million, one hundred fifteen thousand, twenty-three".