25713577 has 2 divisors, whose sum is σ = 25713578. Its totient is φ = 25713576.

The previous prime is 25713551. The next prime is 25713581. The reversal of 25713577 is 77531752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25613721 + 99856 = 5061^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 25713577 - 2⁷ = 25713449 is a prime.

It is a super-2 number, since 2×25713577² = 1322376084269858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25713587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12856788 + 12856789.

It is an arithmetic number, because the mean of its divisors is an integer number (12856789).

Almost surely, 2^25713577 is an apocalyptic number.

It is an amenable number.

25713577 is a deficient number, since it is larger than the sum of its proper divisors (1).

25713577 is an equidigital number, since it uses as much as digits as its factorization.

25713577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51450, while the sum is 37.

The square root of 25713577 is about 5070.8556477186. The cubic root of 25713577 is about 295.1577323670.

The spelling of 25713577 in words is "twenty-five million, seven hundred thirteen thousand, five hundred seventy-seven".