15252420432553 has 12 divisors (see below), whose sum is σ = 15797052391120. Its totient is φ = 14725961809776.

The previous prime is 15252420432547. The next prime is 15252420432559. The reversal of 15252420432553 is 35523402425251.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15252420432547) and next prime (15252420432559).

It is not a de Polignac number, because 15252420432553 - 2²⁵ = 15252386878121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15252420432559) 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, 25046026 + ... + 25647772.

Almost surely, 2^{15252420432553} is an apocalyptic number.

It is an amenable number.

15252420432553 is a deficient number, since it is larger than the sum of its proper divisors (544631958567).

15252420432553 is an equidigital number, since it uses as much as digits as its factorization.

15252420432553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631944 (or 631915 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 43.

The spelling of 15252420432553 in words is "fifteen trillion, two hundred fifty-two billion, four hundred twenty million, four hundred thirty-two thousand, five hundred fifty-three".