15532555023 has 12 divisors (see below), whose sum is σ = 22437849720. Its totient is φ = 10354142736.

The previous prime is 15532555009. The next prime is 15532555033. The reversal of 15532555023 is 32055523551.

15532555023 is a `hidden beast` number, since 1 + 5 + 532 + 55 + 50 + 23 = 666.

It is not a de Polignac number, because 15532555023 - 2¹⁴ = 15532538639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15532555033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45765 + ... + 182097.

It is an arithmetic number, because the mean of its divisors is an integer number (1869820810).

Almost surely, 2^15532555023 is an apocalyptic number.

15532555023 is a deficient number, since it is larger than the sum of its proper divisors (6905294697).

15532555023 is a wasteful number, since it uses less digits than its factorization.

15532555023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148998 (or 148995 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The spelling of 15532555023 in words is "fifteen billion, five hundred thirty-two million, five hundred fifty-five thousand, twenty-three".