25522957 has 2 divisors, whose sum is σ = 25522958. Its totient is φ = 25522956.

The previous prime is 25522919. The next prime is 25522969. The reversal of 25522957 is 75922552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24000201 + 1522756 = 4899^2 + 1234^2 .

It is a cyclic number.

It is not a de Polignac number, because 25522957 - 2⁷ = 25522829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25522907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12761478 + 12761479.

It is an arithmetic number, because the mean of its divisors is an integer number (12761479).

Almost surely, 2^25522957 is an apocalyptic number.

It is an amenable number.

25522957 is a deficient number, since it is larger than the sum of its proper divisors (1).

25522957 is an equidigital number, since it uses as much as digits as its factorization.

25522957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63000, while the sum is 37.

The square root of 25522957 is about 5052.0250395262. The cubic root of 25522957 is about 294.4265677635.

The spelling of 25522957 in words is "twenty-five million, five hundred twenty-two thousand, nine hundred fifty-seven".