247975025 has 12 divisors (see below), whose sum is σ = 307718400. Its totient is φ = 198232080.

The previous prime is 247975001. The next prime is 247975031. The reversal of 247975025 is 520579742.

It is not a de Polignac number, because 247975025 - 2²⁴ = 231197809 is a prime.

It is a super-2 number, since 2×247975025² = 122983226047501250, which contains 22 as substring.

It is a Curzon 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, 41156 + ... + 46794.

It is an arithmetic number, because the mean of its divisors is an integer number (25643200).

Almost surely, 2^247975025 is an apocalyptic number.

247975025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

247975025 is a deficient number, since it is larger than the sum of its proper divisors (59743375).

247975025 is a wasteful number, since it uses less digits than its factorization.

247975025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7408 (or 7403 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 247975025 is about 15747.2227710158. Note that the first 3 decimals coincide. The cubic root of 247975025 is about 628.2550394526.

The spelling of 247975025 in words is "two hundred forty-seven million, nine hundred seventy-five thousand, twenty-five".