22531403250 has 48 divisors (see below), whose sum is σ = 60924920472. Its totient is φ = 6008373600.

The previous prime is 22531403183. The next prime is 22531403263. The reversal of 22531403250 is 5230413522.

It is a happy number.

22531403250 is a `hidden beast` number, since 2 + 2 + 5 + 3 + 1 + 403 + 250 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5217317361 + 17314085889 = 72231^2 + 131583^2 .

It is a super-2 number, since 2×22531403250² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5004729 + ... + 5009228.

Almost surely, 2^22531403250 is an apocalyptic number.

22531403250 is an abundant number, since it is smaller than the sum of its proper divisors (38393517222).

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

22531403250 is a wasteful number, since it uses less digits than its factorization.

22531403250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10013980 (or 10013967 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 22531403250 its reverse (5230413522), we get a palindrome (27761816772).

The spelling of 22531403250 in words is "twenty-two billion, five hundred thirty-one million, four hundred three thousand, two hundred fifty".