8291013025 has 9 divisors (see below), whose sum is σ = 10281420723. Its totient is φ = 6632446200.

The previous prime is 8291013019. The next prime is 8291013091. The reversal of 8291013025 is 5203101928.

The square root of 8291013025 is 91055.

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., 2984764689 + 5306248336 = 54633^2 + 72844^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8291013025 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, 446170 + ... + 464380.

Almost surely, 2^8291013025 is an apocalyptic number.

8291013025 is the 91055-th square number.

8291013025 is the 45528-th centered octagonal number.

It is an amenable number.

8291013025 is a deficient number, since it is larger than the sum of its proper divisors (1990407698).

8291013025 is an frugal number, since it uses more digits than its factorization.

8291013025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36432 (or 18216 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The cubic root of 8291013025 is about 2023.9628301465.

The spelling of 8291013025 in words is "eight billion, two hundred ninety-one million, thirteen thousand, twenty-five".