25253013497 has 2 divisors, whose sum is σ = 25253013498. Its totient is φ = 25253013496.

The previous prime is 25253013491. The next prime is 25253013529. The reversal of 25253013497 is 79431035252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24706809856 + 546203641 = 157184^2 + 23371^2 .

It is a cyclic number.

It is not a de Polignac number, because 25253013497 - 2⁶ = 25253013433 is a prime.

It is not a weakly prime, because it can be changed into another prime (25253013491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12626506748 + 12626506749.

It is an arithmetic number, because the mean of its divisors is an integer number (12626506749).

Almost surely, 2^25253013497 is an apocalyptic number.

It is an amenable number.

25253013497 is a deficient number, since it is larger than the sum of its proper divisors (1).

25253013497 is an equidigital number, since it uses as much as digits as its factorization.

25253013497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 25253013497 in words is "twenty-five billion, two hundred fifty-three million, thirteen thousand, four hundred ninety-seven".