25236555325 has 6 divisors (see below), whose sum is σ = 31293328634. Its totient is φ = 20189244240.

The previous prime is 25236555319. The next prime is 25236555343. The reversal of 25236555325 is 52355563252.

It can be written as a sum of positive squares in 3 ways, for example, as 8063501209 + 17173054116 = 89797^2 + 131046^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25236555325 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 504731082 + ... + 504731131.

Almost surely, 2^25236555325 is an apocalyptic number.

25236555325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25236555325 is a deficient number, since it is larger than the sum of its proper divisors (6056773309).

25236555325 is a wasteful number, since it uses less digits than its factorization.

25236555325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009462223 (or 1009462218 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 43.

The spelling of 25236555325 in words is "twenty-five billion, two hundred thirty-six million, five hundred fifty-five thousand, three hundred twenty-five".