65425651 has 4 divisors (see below), whose sum is σ = 65446272. Its totient is φ = 65405032.

The previous prime is 65425643. The next prime is 65425669. The reversal of 65425651 is 15652456.

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

It is a cyclic number.

It is not a de Polignac number, because 65425651 - 2³ = 65425643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65425601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4435 + ... + 12268.

It is an arithmetic number, because the mean of its divisors is an integer number (16361568).

Almost surely, 2^65425651 is an apocalyptic number.

65425651 is a deficient number, since it is larger than the sum of its proper divisors (20621).

65425651 is a wasteful number, since it uses less digits than its factorization.

65425651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20620.

The product of its digits is 36000, while the sum is 34.

The square root of 65425651 is about 8088.6124273574. The cubic root of 65425651 is about 402.9483213600.

The spelling of 65425651 in words is "sixty-five million, four hundred twenty-five thousand, six hundred fifty-one".