25956929 has 2 divisors, whose sum is σ = 25956930. Its totient is φ = 25956928.

The previous prime is 25956923. The next prime is 25956947. The reversal of 25956929 is 92965952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24850225 + 1106704 = 4985^2 + 1052^2 .

It is a cyclic number.

It is not a de Polignac number, because 25956929 - 2¹² = 25952833 is a prime.

It is a super-2 number, since 2×25956929² = 1347524326222082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25956923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12978464 + 12978465.

It is an arithmetic number, because the mean of its divisors is an integer number (12978465).

Almost surely, 2^25956929 is an apocalyptic number.

It is an amenable number.

25956929 is a deficient number, since it is larger than the sum of its proper divisors (1).

25956929 is an equidigital number, since it uses as much as digits as its factorization.

25956929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 47.

The square root of 25956929 is about 5094.7943039930. The cubic root of 25956929 is about 296.0859296721.

The spelling of 25956929 in words is "twenty-five million, nine hundred fifty-six thousand, nine hundred twenty-nine".