25712957 has 2 divisors, whose sum is σ = 25712958. Its totient is φ = 25712956.

The previous prime is 25712941. The next prime is 25712963. The reversal of 25712957 is 75921752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13734436 + 11978521 = 3706^2 + 3461^2 .

It is a cyclic number.

It is not a de Polignac number, because 25712957 - 2⁴ = 25712941 is a prime.

It is a super-2 number, since 2×25712957² = 1322312315367698, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25712957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25712917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12856478 + 12856479.

It is an arithmetic number, because the mean of its divisors is an integer number (12856479).

Almost surely, 2^25712957 is an apocalyptic number.

It is an amenable number.

25712957 is a deficient number, since it is larger than the sum of its proper divisors (1).

25712957 is an equidigital number, since it uses as much as digits as its factorization.

25712957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 38.

The square root of 25712957 is about 5070.7945136832. The cubic root of 25712957 is about 295.1553600889.

The spelling of 25712957 in words is "twenty-five million, seven hundred twelve thousand, nine hundred fifty-seven".