83518110025 has 81 divisors (see below), whose sum is σ = 126287972391. Its totient is φ = 54626990880.

The previous prime is 83518109957. The next prime is 83518110031. The reversal of 83518110025 is 52001181538.

The square root of 83518110025 is 288995.

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., 30066519609 + 53451590416 = 173397^2 + 231196^2 .

It is a de Polignac number, because none of the positive numbers 2^k-83518110025 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 an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 232640796 + ... + 232641154.

Almost surely, 2^83518110025 is an apocalyptic number.

83518110025 is the 288995-th square number.

83518110025 is the 144498-th centered octagonal number.

It is an amenable number.

83518110025 is a deficient number, since it is larger than the sum of its proper divisors (42769862366).

83518110025 is an equidigital number, since it uses as much as digits as its factorization.

83518110025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 34.

The spelling of 83518110025 in words is "eighty-three billion, five hundred eighteen million, one hundred ten thousand, twenty-five".