15501055423 has 16 divisors (see below), whose sum is σ = 18132719616. Its totient is φ = 12973877280.

The previous prime is 15501055411. The next prime is 15501055441. The reversal of 15501055423 is 32455010551.

It is not a de Polignac number, because 15501055423 - 2²⁵ = 15467500991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15501055483) 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, 1642065 + ... + 1651477.

It is an arithmetic number, because the mean of its divisors is an integer number (1133294976).

Almost surely, 2^15501055423 is an apocalyptic number.

15501055423 is a deficient number, since it is larger than the sum of its proper divisors (2631664193).

15501055423 is an equidigital number, since it uses as much as digits as its factorization.

15501055423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14934.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 15501055423 its reverse (32455010551), we get a palindrome (47956065974).

The spelling of 15501055423 in words is "fifteen billion, five hundred one million, fifty-five thousand, four hundred twenty-three".