23532579379521 has 27 divisors (see below), whose sum is σ = 34578657266881. Its totient is φ = 15421918680744.

The previous prime is 23532579379511. The next prime is 23532579379613. The reversal of 23532579379521 is 12597397523532.

The square root of 23532579379521 is 4851039.

It is a perfect power (a square), and thus also a powerful number.

23532579379521 is a `hidden beast` number, since 2 + 3 + 5 + 3 + 2 + 5 + 79 + 37 + 9 + 521 = 666.

It is not a de Polignac number, because 23532579379521 - 2¹⁵ = 23532579346753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23532579379511) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 858620200 + ... + 858647606.

Almost surely, 2^{23532579379521} is an apocalyptic number.

23532579379521 is the 4851039-th square number.

23532579379521 is the 2425520-th centered octagonal number.

It is an amenable number.

23532579379521 is a deficient number, since it is larger than the sum of its proper divisors (11046077887360).

23532579379521 is an frugal number, since it uses more digits than its factorization.

23532579379521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54938 (or 27469 counting only the distinct ones).

The product of its digits is 107163000, while the sum is 63.

It can be divided in two parts, 23532579 and 379521, that added together give a square (23912100 = 4890²).

The spelling of 23532579379521 in words is "twenty-three trillion, five hundred thirty-two billion, five hundred seventy-nine million, three hundred seventy-nine thousand, five hundred twenty-one".