61556232 has 16 divisors (see below), whose sum is σ = 153890640. Its totient is φ = 20518736.

The previous prime is 61556213. The next prime is 61556237. The reversal of 61556232 is 23265516.

It is a self number, because there is not a number n which added to its sum of digits gives 61556232.

It is not an unprimeable number, because it can be changed into a prime (61556237) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1282398 + ... + 1282445.

It is an arithmetic number, because the mean of its divisors is an integer number (9618165).

Almost surely, 2^61556232 is an apocalyptic number.

It is an amenable number.

61556232 is an abundant number, since it is smaller than the sum of its proper divisors (92334408).

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

61556232 is a wasteful number, since it uses less digits than its factorization.

61556232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564852 (or 2564848 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 61556232 is about 7845.7779728973. Note that the first 3 decimals coincide. The cubic root of 61556232 is about 394.8426056677.

The spelling of 61556232 in words is "sixty-one million, five hundred fifty-six thousand, two hundred thirty-two".