247632725 has 12 divisors (see below), whose sum is σ = 307260096. Its totient is φ = 197980080.

The previous prime is 247632713. The next prime is 247632773. The reversal of 247632725 is 527236742.

247632725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 247632725 - 2¹⁸ = 247370581 is a prime.

It is a super-2 number, since 2×247632725² = 122643932981851250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72404 + ... + 75746.

It is an arithmetic number, because the mean of its divisors is an integer number (25605008).

Almost surely, 2^247632725 is an apocalyptic number.

247632725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

247632725 is a deficient number, since it is larger than the sum of its proper divisors (59627371).

247632725 is a wasteful number, since it uses less digits than its factorization.

247632725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316 (or 6311 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The square root of 247632725 is about 15736.3504345830. The cubic root of 247632725 is about 627.9658292427.

The spelling of 247632725 in words is "two hundred forty-seven million, six hundred thirty-two thousand, seven hundred twenty-five".