65992025 has 24 divisors (see below), whose sum is σ = 92160768. Its totient is φ = 46440000.

The previous prime is 65992021. The next prime is 65992027. The reversal of 65992025 is 52029956.

It is not a de Polignac number, because 65992025 - 2² = 65992021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65992025.

It is not an unprimeable number, because it can be changed into a prime (65992021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4655 + ... + 12395.

It is an arithmetic number, because the mean of its divisors is an integer number (3840032).

Almost surely, 2^65992025 is an apocalyptic number.

It is an amenable number.

65992025 is a deficient number, since it is larger than the sum of its proper divisors (26168743).

65992025 is a wasteful number, since it uses less digits than its factorization.

65992025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7793 (or 7788 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 65992025 is about 8123.5475624877. The cubic root of 65992025 is about 404.1077241898.

The spelling of 65992025 in words is "sixty-five million, nine hundred ninety-two thousand, twenty-five".