25001375012639 has 8 divisors (see below), whose sum is σ = 25063092009600. Its totient is φ = 24939719398296.

The previous prime is 25001375012597. The next prime is 25001375012651. The reversal of 25001375012639 is 93621057310052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25001375012639 - 2¹² = 25001375008543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25001375012639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001375012689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14529989 + ... + 16159310.

It is an arithmetic number, because the mean of its divisors is an integer number (3132886501200).

Almost surely, 2^{25001375012639} is an apocalyptic number.

25001375012639 is a deficient number, since it is larger than the sum of its proper divisors (61716996961).

25001375012639 is a wasteful number, since it uses less digits than its factorization.

25001375012639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30691309.

The product of its (nonzero) digits is 340200, while the sum is 44.

The spelling of 25001375012639 in words is "twenty-five trillion, one billion, three hundred seventy-five million, twelve thousand, six hundred thirty-nine".