31056425 has 12 divisors (see below), whose sum is σ = 39330816. Its totient is φ = 24315600.

The previous prime is 31056407. The next prime is 31056437. The reversal of 31056425 is 52465013.

It is not a de Polignac number, because 31056425 - 2⁸ = 31056169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31056394 and 31056403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12041 + ... + 14390.

It is an arithmetic number, because the mean of its divisors is an integer number (3277568).

Almost surely, 2^31056425 is an apocalyptic number.

It is an amenable number.

31056425 is a deficient number, since it is larger than the sum of its proper divisors (8274391).

31056425 is a wasteful number, since it uses less digits than its factorization.

31056425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26488 (or 26483 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 31056425 is about 5572.8291737680. The cubic root of 31056425 is about 314.3285437007.

The spelling of 31056425 in words is "thirty-one million, fifty-six thousand, four hundred twenty-five".