25295731 has 2 divisors, whose sum is σ = 25295732. Its totient is φ = 25295730.

The previous prime is 25295717. The next prime is 25295749. The reversal of 25295731 is 13759252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25295731 - 2¹⁹ = 24771443 is a prime.

It is a super-2 number, since 2×25295731² = 1279748013648722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25295761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12647865 + 12647866.

It is an arithmetic number, because the mean of its divisors is an integer number (12647866).

Almost surely, 2^25295731 is an apocalyptic number.

25295731 is a deficient number, since it is larger than the sum of its proper divisors (1).

25295731 is an equidigital number, since it uses as much as digits as its factorization.

25295731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 34.

The square root of 25295731 is about 5029.4861566566. The cubic root of 25295731 is about 293.5502208233.

The spelling of 25295731 in words is "twenty-five million, two hundred ninety-five thousand, seven hundred thirty-one".