25139001391 has 8 divisors (see below), whose sum is σ = 28732413344. Its totient is φ = 21546120960.

The previous prime is 25139001389. The next prime is 25139001487. The reversal of 25139001391 is 19310093152.

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

It is not a de Polignac number, because 25139001391 - 2¹ = 25139001389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25139001341) 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, 25770 + ... + 225703.

It is an arithmetic number, because the mean of its divisors is an integer number (3591551668).

Almost surely, 2^25139001391 is an apocalyptic number.

25139001391 is a deficient number, since it is larger than the sum of its proper divisors (3593411953).

25139001391 is a wasteful number, since it uses less digits than its factorization.

25139001391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265761.

The product of its (nonzero) digits is 7290, while the sum is 34.

The spelling of 25139001391 in words is "twenty-five billion, one hundred thirty-nine million, one thousand, three hundred ninety-one".