2899578924225 has 81 divisors (see below), whose sum is σ = 5282841277467. Its totient is φ = 1520273232000.

The previous prime is 2899578924157. The next prime is 2899578924233. The reversal of 2899578924225 is 5224298759982.

The square root of 2899578924225 is 1702815.

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

2899578924225 is a `hidden beast` number, since 2 + 8 + 9 + 9 + 578 + 9 + 2 + 42 + 2 + 5 = 666.

2899578924225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 13 ways, for example, as 1658431415601 + 1241147508624 = 1287801^2 + 1114068^2 .

It is not a de Polignac number, because 2899578924225 - 2³⁹ = 2349823110337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1558074795 + ... + 1558076655.

Almost surely, 2^{2899578924225} is an apocalyptic number.

2899578924225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2899578924225 is the 1702815-th square number.

2899578924225 is the 851408-th centered octagonal number.

It is an amenable number.

2899578924225 is a deficient number, since it is larger than the sum of its proper divisors (2383262353242).

2899578924225 is an frugal number, since it uses more digits than its factorization.

2899578924225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860 (or 1930 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 72.

The spelling of 2899578924225 in words is "two trillion, eight hundred ninety-nine billion, five hundred seventy-eight million, nine hundred twenty-four thousand, two hundred twenty-five".