25342912072529 has 2 divisors, whose sum is σ = 25342912072530. Its totient is φ = 25342912072528.

The previous prime is 25342912072523. The next prime is 25342912072537. The reversal of 25342912072529 is 92527021924352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13243485505600 + 12099426566929 = 3639160^2 + 3478423^2 .

It is a cyclic number.

It is not a de Polignac number, because 25342912072529 - 2⁸ = 25342912072273 is a prime.

It is a super-2 number, since 2×25342912072529² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25342912072523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12671456036264 + 12671456036265.

It is an arithmetic number, because the mean of its divisors is an integer number (12671456036265).

Almost surely, 2^{25342912072529} is an apocalyptic number.

It is an amenable number.

25342912072529 is a deficient number, since it is larger than the sum of its proper divisors (1).

25342912072529 is an equidigital number, since it uses as much as digits as its factorization.

25342912072529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 25342912072529 in words is "twenty-five trillion, three hundred forty-two billion, nine hundred twelve million, seventy-two thousand, five hundred twenty-nine".