60521604 has 72 divisors (see below), whose sum is σ = 166878432. Its totient is φ = 16922880.

The previous prime is 60521561. The next prime is 60521609. The reversal of 60521604 is 40612506.

60521604 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

60521604 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (60521609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20952 + ... + 23664.

It is an arithmetic number, because the mean of its divisors is an integer number (2317756).

Almost surely, 2^60521604 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 60521604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83439216).

60521604 is an abundant number, since it is smaller than the sum of its proper divisors (106356828).

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

60521604 is a wasteful number, since it uses less digits than its factorization.

60521604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2742 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 60521604 is about 7779.5632268142. The cubic root of 60521604 is about 392.6179428374.

The spelling of 60521604 in words is "sixty million, five hundred twenty-one thousand, six hundred four".