25139924350 has 12 divisors (see below), whose sum is σ = 46760259384. Its totient is φ = 10055969720.

The previous prime is 25139924321. The next prime is 25139924351. The reversal of 25139924350 is 5342993152.

It is a junction number, because it is equal to n+sod(n) for n = 25139924297 and 25139924306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25139924351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251399194 + ... + 251399293.

It is an arithmetic number, because the mean of its divisors is an integer number (3896688282).

Almost surely, 2^25139924350 is an apocalyptic number.

25139924350 is a deficient number, since it is larger than the sum of its proper divisors (21620335034).

25139924350 is a wasteful number, since it uses less digits than its factorization.

25139924350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502798499 (or 502798494 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 25139924350 in words is "twenty-five billion, one hundred thirty-nine million, nine hundred twenty-four thousand, three hundred fifty".