61033616 has 30 divisors (see below), whose sum is σ = 137560950. Its totient is φ = 26156928.

The previous prime is 61033607. The next prime is 61033627. The reversal of 61033616 is 61633016.

It can be written as a sum of positive squares in only one way, i.e., 42198016 + 18835600 = 6496^2 + 4340^2 .

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 5 ways as a sum of consecutive naturals, for example, 38141 + ... + 39708.

It is an arithmetic number, because the mean of its divisors is an integer number (4585365).

Almost surely, 2^61033616 is an apocalyptic number.

It is an amenable number.

61033616 is an abundant number, since it is smaller than the sum of its proper divisors (76527334).

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

61033616 is a wasteful number, since it uses less digits than its factorization.

61033616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77871 (or 77858 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 61033616 is about 7812.4014233781. The cubic root of 61033616 is about 393.7220161182.

The spelling of 61033616 in words is "sixty-one million, thirty-three thousand, six hundred sixteen".