25139083400 has 96 divisors (see below), whose sum is σ = 59777736480. Its totient is φ = 9829248000.

The previous prime is 25139083399. The next prime is 25139083439. The reversal of 25139083400 is 438093152.

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 23 ways as a sum of consecutive naturals, for example, 1748240 + ... + 1762560.

It is an arithmetic number, because the mean of its divisors is an integer number (622684755).

Almost surely, 2^25139083400 is an apocalyptic number.

25139083400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25139083400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29888868240).

25139083400 is an abundant number, since it is smaller than the sum of its proper divisors (34638653080).

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

25139083400 is a wasteful number, since it uses less digits than its factorization.

25139083400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14535 (or 14526 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 25139083400 in words is "twenty-five billion, one hundred thirty-nine million, eighty-three thousand, four hundred".