25352415516 has 24 divisors (see below), whose sum is σ = 59166849280. Its totient is φ = 8449203312.

The previous prime is 25352415493. The next prime is 25352415523. The reversal of 25352415516 is 61551425352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133396 + ... + 261723.

Almost surely, 2^25352415516 is an apocalyptic number.

It is an amenable number.

25352415516 is an abundant number, since it is smaller than the sum of its proper divisors (33814433764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25352415516 is a wasteful number, since it uses less digits than its factorization.

25352415516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400473 (or 400471 counting only the distinct ones).

The product of its digits is 180000, while the sum is 39.

The spelling of 25352415516 in words is "twenty-five billion, three hundred fifty-two million, four hundred fifteen thousand, five hundred sixteen".