8145965025 has 81 divisors (see below), whose sum is σ = 16066675443. Its totient is φ = 3942338400.

The previous prime is 8145964997. The next prime is 8145965041. The reversal of 8145965025 is 5205695418.

The square root of 8145965025 is 90255.

It is a perfect power (a square), and thus also a powerful number.

8145965025 is a `hidden beast` number, since 8 + 1 + 4 + 596 + 50 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2932547409 + 5213417616 = 54153^2 + 72204^2 .

It is not a de Polignac number, because 8145965025 - 2¹⁵ = 8145932257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 14891802 + ... + 14892348.

Almost surely, 2^8145965025 is an apocalyptic number.

8145965025 is the 90255-th square number.

8145965025 is the 45128-th centered octagonal number.

It is an amenable number.

8145965025 is a deficient number, since it is larger than the sum of its proper divisors (7920710418).

8145965025 is a wasteful number, since it uses less digits than its factorization.

8145965025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The cubic root of 8145965025 is about 2012.0905145294.

The spelling of 8145965025 in words is "eight billion, one hundred forty-five million, nine hundred sixty-five thousand, twenty-five".