8249478025 has 12 divisors (see below), whose sum is σ = 10275231232. Its totient is φ = 6569983440.

The previous prime is 8249478019. The next prime is 8249478043. The reversal of 8249478025 is 5208749428.

It is not a de Polignac number, because 8249478025 - 2⁷ = 8249477897 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8249478025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 734289 + ... + 745438.

Almost surely, 2^8249478025 is an apocalyptic number.

It is an amenable number.

8249478025 is a deficient number, since it is larger than the sum of its proper divisors (2025753207).

8249478025 is a wasteful number, since it uses less digits than its factorization.

8249478025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479960 (or 1479955 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 8249478025 is about 90826.6371996674. The cubic root of 8249478025 is about 2020.5773947404.

The spelling of 8249478025 in words is "eight billion, two hundred forty-nine million, four hundred seventy-eight thousand, twenty-five".