25192961 has 2 divisors, whose sum is σ = 25192962. Its totient is φ = 25192960.

The previous prime is 25192949. The next prime is 25193009. The reversal of 25192961 is 16929152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24601600 + 591361 = 4960^2 + 769^2 .

It is a cyclic number.

It is not a de Polignac number, because 25192961 - 2¹⁸ = 24930817 is a prime.

It is not a weakly prime, because it can be changed into another prime (25192261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12596480 + 12596481.

It is an arithmetic number, because the mean of its divisors is an integer number (12596481).

Almost surely, 2^25192961 is an apocalyptic number.

It is an amenable number.

25192961 is a deficient number, since it is larger than the sum of its proper divisors (1).

25192961 is an equidigital number, since it uses as much as digits as its factorization.

25192961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 35.

The square root of 25192961 is about 5019.2590090570. The cubic root of 25192961 is about 293.1521417457.

The spelling of 25192961 in words is "twenty-five million, one hundred ninety-two thousand, nine hundred sixty-one".