65223504 has 120 divisors (see below), whose sum is σ = 198598400. Its totient is φ = 19906560.

The previous prime is 65223493. The next prime is 65223539. The reversal of 65223504 is 40532256.

65223504 is a `hidden beast` number, since 652 + 2 + 3 + 5 + 0 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84432 + ... + 85200.

Almost surely, 2^65223504 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 65223504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99299200).

65223504 is an abundant number, since it is smaller than the sum of its proper divisors (133374896).

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

65223504 is a wasteful number, since it uses less digits than its factorization.

65223504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 65223504 is about 8076.1069829467. The cubic root of 65223504 is about 402.5328939335.

The spelling of 65223504 in words is "sixty-five million, two hundred twenty-three thousand, five hundred four".