8515425 has 12 divisors (see below), whose sum is σ = 14078960. Its totient is φ = 4541520.

The previous prime is 8515391. The next prime is 8515433. The reversal of 8515425 is 5245158.

8515425 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8515425 - 2⁶ = 8515361 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8515392 and 8515401.

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, 56695 + ... + 56844.

Almost surely, 2^8515425 is an apocalyptic number.

It is an amenable number.

8515425 is a deficient number, since it is larger than the sum of its proper divisors (5563535).

8515425 is a wasteful number, since it uses less digits than its factorization.

8515425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113552 (or 113547 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 8515425 is about 2918.1201140460. The cubic root of 8515425 is about 204.2061305546.

The spelling of 8515425 in words is "eight million, five hundred fifteen thousand, four hundred twenty-five".