250012775140 has 24 divisors (see below), whose sum is σ = 527747182200. Its totient is φ = 99486947328.

The previous prime is 250012775113. The next prime is 250012775143. The reversal of 250012775140 is 41577210052.

It can be written as a sum of positive squares in 4 ways, for example, as 596434084 + 249416341056 = 24422^2 + 499416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 250012775096 and 250012775105.

It is not an unprimeable number, because it can be changed into a prime (250012775143) 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, 32381215 + ... + 32388934.

It is an arithmetic number, because the mean of its divisors is an integer number (21989465925).

Almost surely, 2^250012775140 is an apocalyptic number.

250012775140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250012775140 is an abundant number, since it is smaller than the sum of its proper divisors (277734407060).

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

250012775140 is a wasteful number, since it uses less digits than its factorization.

250012775140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64770351 (or 64770349 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

Adding to 250012775140 its reverse (41577210052), we get a palindrome (291589985192).

The spelling of 250012775140 in words is "two hundred fifty billion, twelve million, seven hundred seventy-five thousand, one hundred forty".