28583297932225 has 9 divisors (see below), whose sum is σ = 35443322583267. Its totient is φ = 22866616960440.

The previous prime is 28583297932201. The next prime is 28583297932261. The reversal of 28583297932225 is 52223979238582.

The square root of 28583297932225 is 5346335.

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., 10289987255601 + 18293310676624 = 3207801^2 + 4277068^2 .

It is not a de Polignac number, because 28583297932225 - 2⁵ = 28583297932193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26197042 + ... + 27266308.

Almost surely, 2^{28583297932225} is an apocalyptic number.

28583297932225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28583297932225 is the 5346335-th square number.

28583297932225 is the 2673168-th centered octagonal number.

It is an amenable number.

28583297932225 is a deficient number, since it is larger than the sum of its proper divisors (6860024651042).

28583297932225 is an frugal number, since it uses more digits than its factorization.

28583297932225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138544 (or 1069272 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 67.

The spelling of 28583297932225 in words is "twenty-eight trillion, five hundred eighty-three billion, two hundred ninety-seven million, nine hundred thirty-two thousand, two hundred twenty-five".