25752731 has 2 divisors, whose sum is σ = 25752732. Its totient is φ = 25752730.

The previous prime is 25752719. The next prime is 25752751. The reversal of 25752731 is 13725752.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25752731 is a prime.

It is a super-2 number, since 2×25752731² = 1326406307916722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25752751) by changing a digit.

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 as a sum of consecutive naturals, namely, 12876365 + 12876366.

It is an arithmetic number, because the mean of its divisors is an integer number (12876366).

Almost surely, 2^25752731 is an apocalyptic number.

25752731 is a deficient number, since it is larger than the sum of its proper divisors (1).

25752731 is an equidigital number, since it uses as much as digits as its factorization.

25752731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14700, while the sum is 32.

The square root of 25752731 is about 5074.7148688375. The cubic root of 25752731 is about 295.3074683745.

The spelling of 25752731 in words is "twenty-five million, seven hundred fifty-two thousand, seven hundred thirty-one".