247902425 has 12 divisors (see below), whose sum is σ = 307803216. Its totient is φ = 198061200.

The previous prime is 247902407. The next prime is 247902461. The reversal of 247902425 is 524209742.

It is a de Polignac number, because none of the positive numbers 2^k-247902425 is a prime.

It is a super-2 number, since 2×247902425² = 122911224641761250, which contains 22 as substring.

It is a Duffinian 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, 14162 + ... + 26388.

It is an arithmetic number, because the mean of its divisors is an integer number (25650268).

Almost surely, 2^247902425 is an apocalyptic number.

247902425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

247902425 is a deficient number, since it is larger than the sum of its proper divisors (59900791).

247902425 is a wasteful number, since it uses less digits than its factorization.

247902425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13048 (or 13043 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 247902425 is about 15744.9174338896. The cubic root of 247902425 is about 628.1937217617.

The spelling of 247902425 in words is "two hundred forty-seven million, nine hundred two thousand, four hundred twenty-five".