61555052 has 24 divisors (see below), whose sum is σ = 120010800. Its totient is φ = 27429696.

The previous prime is 61555051. The next prime is 61555073. The reversal of 61555052 is 25055516.

61555052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (61555051) 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, 18902 + ... + 21917.

It is an arithmetic number, because the mean of its divisors is an integer number (5000450).

Almost surely, 2^61555052 is an apocalyptic number.

It is an amenable number.

61555052 is a deficient number, since it is larger than the sum of its proper divisors (58455748).

61555052 is a wasteful number, since it uses less digits than its factorization.

61555052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40865 (or 40863 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 61555052 is about 7845.7027728560. The cubic root of 61555052 is about 394.8400826778.

The spelling of 61555052 in words is "sixty-one million, five hundred fifty-five thousand, fifty-two".