25041255457 has 2 divisors, whose sum is σ = 25041255458. Its totient is φ = 25041255456.

The previous prime is 25041255439. The next prime is 25041255467. The reversal of 25041255457 is 75455214052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18975338001 + 6065917456 = 137751^2 + 77884^2 .

It is a cyclic number.

It is not a de Polignac number, because 25041255457 - 2⁷ = 25041255329 is a prime.

It is not a weakly prime, because it can be changed into another prime (25041255467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12520627728 + 12520627729.

It is an arithmetic number, because the mean of its divisors is an integer number (12520627729).

Almost surely, 2^25041255457 is an apocalyptic number.

It is an amenable number.

25041255457 is a deficient number, since it is larger than the sum of its proper divisors (1).

25041255457 is an equidigital number, since it uses as much as digits as its factorization.

25041255457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280000, while the sum is 40.

The spelling of 25041255457 in words is "twenty-five billion, forty-one million, two hundred fifty-five thousand, four hundred fifty-seven".