72530022250 has 64 divisors (see below), whose sum is σ = 160523700480. Its totient is φ = 24009921600.

The previous prime is 72530022241. The next prime is 72530022251. The reversal of 72530022250 is 5222003527.

It is not an unprimeable number, because it can be changed into a prime (72530022251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 663832 + ... + 765331.

It is an arithmetic number, because the mean of its divisors is an integer number (2508182820).

Almost surely, 2^72530022250 is an apocalyptic number.

72530022250 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72530022250 is an abundant number, since it is smaller than the sum of its proper divisors (87993678230).

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

72530022250 is a wasteful number, since it uses less digits than its factorization.

72530022250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429216 (or 1429206 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

Adding to 72530022250 its reverse (5222003527), we get a palindrome (77752025777).

The spelling of 72530022250 in words is "seventy-two billion, five hundred thirty million, twenty-two thousand, two hundred fifty".