22725255333640 has 32 divisors (see below), whose sum is σ = 51584318533080. Its totient is φ = 9009658749952.

The previous prime is 22725255333577. The next prime is 22725255333661. The reversal of 22725255333640 is 4633355252722.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4806170520804 + 17919084812836 = 2192298^2 + 4233094^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2513851159 + ... + 2513860198.

Almost surely, 2^{22725255333640} is an apocalyptic number.

22725255333640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22725255333640 is an abundant number, since it is smaller than the sum of its proper divisors (28859063199440).

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

22725255333640 is a wasteful number, since it uses less digits than its factorization.

22725255333640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027711481 (or 5027711477 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 49.

The spelling of 22725255333640 in words is "twenty-two trillion, seven hundred twenty-five billion, two hundred fifty-five million, three hundred thirty-three thousand, six hundred forty".