65504572 has 36 divisors (see below), whose sum is σ = 134303400. Its totient is φ = 27872544.

The previous prime is 65504557. The next prime is 65504599. The reversal of 65504572 is 27540556.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28083 + ... + 30325.

It is an arithmetic number, because the mean of its divisors is an integer number (3730650).

Almost surely, 2^65504572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65504572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67151700).

65504572 is an abundant number, since it is smaller than the sum of its proper divisors (68798828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65504572 is a wasteful number, since it uses less digits than its factorization.

65504572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410 (or 2401 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 65504572 is about 8093.4894822938. The cubic root of 65504572 is about 403.1102777469.

The spelling of 65504572 in words is "sixty-five million, five hundred four thousand, five hundred seventy-two".