61613064 has 24 divisors (see below), whose sum is σ = 166868910. Its totient is φ = 20537664.

The previous prime is 61613063. The next prime is 61613077. The reversal of 61613064 is 46031616.

It can be written as a sum of positive squares in only one way, i.e., 58522500 + 3090564 = 7650^2 + 1758^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (61613063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 427797 + ... + 427940.

Almost surely, 2^61613064 is an apocalyptic number.

It is an amenable number.

61613064 is an abundant number, since it is smaller than the sum of its proper divisors (105255846).

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

61613064 is a wasteful number, since it uses less digits than its factorization.

61613064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855749 (or 855742 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 61613064 is about 7849.3989578821. The cubic root of 61613064 is about 394.9640815494.

The spelling of 61613064 in words is "sixty-one million, six hundred thirteen thousand, sixty-four".