65825005 has 4 divisors (see below), whose sum is σ = 78990012. Its totient is φ = 52660000.

The previous prime is 65824981. The next prime is 65825017. The reversal of 65825005 is 50052856.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41203561 + 24621444 = 6419^2 + 4962^2 .

It is not a de Polignac number, because 65825005 - 2⁵ = 65824973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6582496 + ... + 6582505.

It is an arithmetic number, because the mean of its divisors is an integer number (19747503).

Almost surely, 2^65825005 is an apocalyptic number.

It is an amenable number.

65825005 is a deficient number, since it is larger than the sum of its proper divisors (13165007).

65825005 is a wasteful number, since it uses less digits than its factorization.

65825005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13165006.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 65825005 is about 8113.2610582922. The cubic root of 65825005 is about 403.7665158251.

The spelling of 65825005 in words is "sixty-five million, eight hundred twenty-five thousand, five".