20215925000 has 48 divisors (see below), whose sum is σ = 47378100420. Its totient is φ = 8086360000.

The previous prime is 20215924999. The next prime is 20215925021. The reversal of 20215925000 is 52951202.

It can be written as a sum of positive squares in 6 ways, for example, as 1359691876 + 18856233124 = 36874^2 + 137318^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379319 + ... + 429318.

Almost surely, 2^20215925000 is an apocalyptic number.

20215925000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20215925000 is an abundant number, since it is smaller than the sum of its proper divisors (27162175420).

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

20215925000 is an frugal number, since it uses more digits than its factorization.

20215925000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808668 (or 808644 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 20215925000 in words is "twenty billion, two hundred fifteen million, nine hundred twenty-five thousand".