28963184225 has 6 divisors (see below), whose sum is σ = 35914348470. Its totient is φ = 23170547360.

The previous prime is 28963184213. The next prime is 28963184269. The reversal of 28963184225 is 52248136982.

It can be written as a sum of positive squares in 3 ways, for example, as 10345127521 + 18618056704 = 101711^2 + 136448^2 .

It is not a de Polignac number, because 28963184225 - 2⁸ = 28963183969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 579263660 + ... + 579263709.

It is an arithmetic number, because the mean of its divisors is an integer number (5985724745).

Almost surely, 2^28963184225 is an apocalyptic number.

28963184225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28963184225 is a deficient number, since it is larger than the sum of its proper divisors (6951164245).

28963184225 is a wasteful number, since it uses less digits than its factorization.

28963184225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158527379 (or 1158527374 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The spelling of 28963184225 in words is "twenty-eight billion, nine hundred sixty-three million, one hundred eighty-four thousand, two hundred twenty-five".