28630332025 has 27 divisors (see below), whose sum is σ = 36392673231. Its totient is φ = 22343181840.

The previous prime is 28630332019. The next prime is 28630332037. The reversal of 28630332025 is 52023303682.

The square root of 28630332025 is 169205.

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

It can be written as a sum of positive squares in only one way, i.e., 10306919529 + 18323412496 = 101523^2 + 135364^2 .

It is not a de Polignac number, because 28630332025 - 2¹³ = 28630323833 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 36378682 + ... + 36379468.

Almost surely, 2^28630332025 is an apocalyptic number.

28630332025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28630332025 is the 169205-th square number.

28630332025 is the 84603-rd centered octagonal number.

It is an amenable number.

28630332025 is a deficient number, since it is larger than the sum of its proper divisors (7762341206).

28630332025 is an frugal number, since it uses more digits than its factorization.

28630332025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 28630332025 in words is "twenty-eight billion, six hundred thirty million, three hundred thirty-two thousand, twenty-five".