239487890625 has 189 divisors, whose sum is σ = 464844976843. Its totient is φ = 123322500000.

The previous prime is 239487890623. The next prime is 239487890633. The reversal of 239487890625 is 526098784932.

The square root of 239487890625 is 489375.

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

239487890625 is a `hidden beast` number, since 2 + 3 + 9 + 487 + 8 + 90 + 62 + 5 = 666.

239487890625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 13 ways, for example, as 13775482161 + 225712408464 = 117369^2 + 475092^2 .

It is not a de Polignac number, because 239487890625 - 2¹ = 239487890623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239487890623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 8258203111 + ... + 8258203139.

Almost surely, 2^239487890625 is an apocalyptic number.

239487890625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

239487890625 is the 489375-th square number.

239487890625 is the 244688-th centered octagonal number.

It is an amenable number.

239487890625 is a deficient number, since it is larger than the sum of its proper divisors (225357086218).

239487890625 is an frugal number, since it uses more digits than its factorization.

239487890625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 239487890625 in words is "two hundred thirty-nine billion, four hundred eighty-seven million, eight hundred ninety thousand, six hundred twenty-five".