61045055 has 4 divisors (see below), whose sum is σ = 73254072. Its totient is φ = 48836040.

The previous prime is 61045051. The next prime is 61045063. The reversal of 61045055 is 55054016.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61045055 - 2² = 61045051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61045051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6104501 + ... + 6104510.

It is an arithmetic number, because the mean of its divisors is an integer number (18313518).

Almost surely, 2^61045055 is an apocalyptic number.

61045055 is a deficient number, since it is larger than the sum of its proper divisors (12209017).

61045055 is a wasteful number, since it uses less digits than its factorization.

61045055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12209016.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 61045055 is about 7813.1334943158. The cubic root of 61045055 is about 393.7466118798.

The spelling of 61045055 in words is "sixty-one million, forty-five thousand, fifty-five".