138750250250 has 64 divisors (see below), whose sum is σ = 278570223360. Its totient is φ = 51586891200.

The previous prime is 138750250187. The next prime is 138750250319. The reversal of 138750250250 is 52052057831.

It is a Harshad number since it is a multiple of its sum of digits (38).

138750250250 is a modest number, since divided by 250250 gives 138750 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23822 + ... + 527321.

It is an arithmetic number, because the mean of its divisors is an integer number (4352659740).

Almost surely, 2^138750250250 is an apocalyptic number.

138750250250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138750250250 is an abundant number, since it is smaller than the sum of its proper divisors (139819973110).

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

138750250250 is a wasteful number, since it uses less digits than its factorization.

138750250250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551232 (or 551222 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 138750250250 in words is "one hundred thirty-eight billion, seven hundred fifty million, two hundred fifty thousand, two hundred fifty".