25154002515252 has 48 divisors (see below), whose sum is σ = 63213892952000. Its totient is φ = 7738909475328.

The previous prime is 25154002515221. The next prime is 25154002515281. The reversal of 25154002515252 is 25251520045152.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 25154002515252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6615877 + ... + 9699372.

Almost surely, 2^{25154002515252} is an apocalyptic number.

It is an amenable number.

25154002515252 is an abundant number, since it is smaller than the sum of its proper divisors (38059890436748).

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

25154002515252 is a wasteful number, since it uses less digits than its factorization.

25154002515252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16325152 (or 16325150 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 25154002515252 in words is "twenty-five trillion, one hundred fifty-four billion, two million, five hundred fifteen thousand, two hundred fifty-two".