61552016 has 40 divisors (see below), whose sum is σ = 123393144. Its totient is φ = 29721600.

The previous prime is 61552013. The next prime is 61552021. The reversal of 61552016 is 61025516.

61552016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 46185616 + 15366400 = 6796^2 + 3920^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61552013) by changing a digit.

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, 102116 + ... + 102716.

Almost surely, 2^61552016 is an apocalyptic number.

It is an amenable number.

61552016 is an abundant number, since it is smaller than the sum of its proper divisors (61841128).

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

61552016 is a wasteful number, since it uses less digits than its factorization.

61552016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 61552016 is about 7845.5092887588. The cubic root of 61552016 is about 394.8335911760.

The spelling of 61552016 in words is "sixty-one million, five hundred fifty-two thousand, sixteen".