65504051 has 4 divisors (see below), whose sum is σ = 65560152. Its totient is φ = 65447952.

The previous prime is 65504027. The next prime is 65504053. The reversal of 65504051 is 15040556.

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 65504051 - 2²² = 61309747 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 65504051.

It is not an unprimeable number, because it can be changed into a prime (65504053) 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, 26261 + ... + 28646.

It is an arithmetic number, because the mean of its divisors is an integer number (16390038).

Almost surely, 2^65504051 is an apocalyptic number.

65504051 is a deficient number, since it is larger than the sum of its proper divisors (56101).

65504051 is a wasteful number, since it uses less digits than its factorization.

65504051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56100.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 65504051 is about 8093.4572958656. The cubic root of 65504051 is about 403.1092090123.

It can be divided in two parts, 6550 and 4051, that added together give a palindrome (10601).

The spelling of 65504051 in words is "sixty-five million, five hundred four thousand, fifty-one".