22578125000 has 132 divisors (see below), whose sum is σ = 56213377755. Its totient is φ = 8500000000.

The previous prime is 22578124997. The next prime is 22578125023. The reversal of 22578125000 is 52187522.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 17 ways, for example, as 2973084676 + 19605040324 = 54526^2 + 140018^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106250.

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is an unprimeable number.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 1328124992 + ... + 1328125008.

Almost surely, 2^22578125000 is an apocalyptic number.

22578125000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22578125000

22578125000 is an abundant number, since it is smaller than the sum of its proper divisors (33635252755).

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

22578125000 is an frugal number, since it uses more digits than its factorization.

22578125000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 24 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

Multiplying 22578125000 by its sum of digits (32), we get a square (722500000000 = 850000²).

The spelling of 22578125000 in words is "twenty-two billion, five hundred seventy-eight million, one hundred twenty-five thousand".