20239330225 has 27 divisors (see below), whose sum is σ = 25826977827. Its totient is φ = 15733370880.

The previous prime is 20239330207. The next prime is 20239330253. The reversal of 20239330225 is 52203393202.

The square root of 20239330225 is 142265.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 6112581489 + 14126748736 = 78183^2 + 118856^2 .

It is not a de Polignac number, because 20239330225 - 2³³ = 11649395633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 26318641 + ... + 26319409.

Almost surely, 2^20239330225 is an apocalyptic number.

20239330225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20239330225 is the 142265-th square number.

20239330225 is the 71133-rd centered octagonal number.

It is an amenable number.

20239330225 is a deficient number, since it is larger than the sum of its proper divisors (5587647602).

20239330225 is an frugal number, since it uses more digits than its factorization.

20239330225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

It can be divided in two parts, 20239 and 330225, that added together give a square (350464 = 592²).

The spelling of 20239330225 in words is "twenty billion, two hundred thirty-nine million, three hundred thirty thousand, two hundred twenty-five".