25264251351653 has 2 divisors, whose sum is σ = 25264251351654. Its totient is φ = 25264251351652.

The previous prime is 25264251351649. The next prime is 25264251351671. The reversal of 25264251351653 is 35615315246252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23105931900769 + 2158319450884 = 4806863^2 + 1469122^2 .

It is a cyclic number.

It is not a de Polignac number, because 25264251351653 - 2² = 25264251351649 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25264251351623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632125675826 + 12632125675827.

It is an arithmetic number, because the mean of its divisors is an integer number (12632125675827).

Almost surely, 2^{25264251351653} is an apocalyptic number.

It is an amenable number.

25264251351653 is a deficient number, since it is larger than the sum of its proper divisors (1).

25264251351653 is an equidigital number, since it uses as much as digits as its factorization.

25264251351653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480000, while the sum is 50.

The spelling of 25264251351653 in words is "twenty-five trillion, two hundred sixty-four billion, two hundred fifty-one million, three hundred fifty-one thousand, six hundred fifty-three".