61305604 has 24 divisors (see below), whose sum is σ = 114313248. Its totient is φ = 28667520.

The previous prime is 61305593. The next prime is 61305611. The reversal of 61305604 is 40650316.

61305604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8319 + ... + 13849.

It is an arithmetic number, because the mean of its divisors is an integer number (4763052).

Almost surely, 2^61305604 is an apocalyptic number.

It is an amenable number.

61305604 is a deficient number, since it is larger than the sum of its proper divisors (53007644).

61305604 is a wasteful number, since it uses less digits than its factorization.

61305604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715 (or 5713 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 61305604 is about 7829.7895246296. The cubic root of 61305604 is about 394.3060056720.

The spelling of 61305604 in words is "sixty-one million, three hundred five thousand, six hundred four".