61055064 has 144 divisors (see below), whose sum is σ = 198416400. Its totient is φ = 16612992.

The previous prime is 61055051. The next prime is 61055081. The reversal of 61055064 is 46055016.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 266502 + ... + 266730.

Almost surely, 2^61055064 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 61055064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99208200).

61055064 is an abundant number, since it is smaller than the sum of its proper divisors (137361336).

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

61055064 is a wasteful number, since it uses less digits than its factorization.

61055064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 61055064 is about 7813.7739921244. The cubic root of 61055064 is about 393.7681303821.

The spelling of 61055064 in words is "sixty-one million, fifty-five thousand, sixty-four".