65530404 has 144 divisors (see below), whose sum is σ = 188285440. Its totient is φ = 19673280.

The previous prime is 65530403. The next prime is 65530417. The reversal of 65530404 is 40403556.

65530404 is a `hidden beast` number, since 655 + 3 + 0 + 4 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (65530403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1771074 + ... + 1771110.

Almost surely, 2^65530404 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 65530404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94142720).

65530404 is an abundant number, since it is smaller than the sum of its proper divisors (122755036).

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

65530404 is a wasteful number, since it uses less digits than its factorization.

65530404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 96 counting only the distinct ones).

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

The square root of 65530404 is about 8095.0851755865. The cubic root of 65530404 is about 403.1632601869.

The spelling of 65530404 in words is "sixty-five million, five hundred thirty thousand, four hundred four".