25954092257 has 2 divisors, whose sum is σ = 25954092258. Its totient is φ = 25954092256.

The previous prime is 25954092251. The next prime is 25954092293. The reversal of 25954092257 is 75229045952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15946890961 + 10007201296 = 126281^2 + 100036^2 .

It is a cyclic number.

It is not a de Polignac number, because 25954092257 - 2¹² = 25954088161 is a prime.

It is a super-2 number, since 2×25954092257² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25954092251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12977046128 + 12977046129.

It is an arithmetic number, because the mean of its divisors is an integer number (12977046129).

Almost surely, 2^25954092257 is an apocalyptic number.

It is an amenable number.

25954092257 is a deficient number, since it is larger than the sum of its proper divisors (1).

25954092257 is an equidigital number, since it uses as much as digits as its factorization.

25954092257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 25954092257 in words is "twenty-five billion, nine hundred fifty-four million, ninety-two thousand, two hundred fifty-seven".