61165055 has 8 divisors (see below), whose sum is σ = 83883552. Its totient is φ = 41941728.

The previous prime is 61165043. The next prime is 61165057. The reversal of 61165055 is 55056116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61165055 - 2¹⁸ = 60902911 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 (61165057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873752 + ... + 873821.

It is an arithmetic number, because the mean of its divisors is an integer number (10485444).

Almost surely, 2^61165055 is an apocalyptic number.

61165055 is a deficient number, since it is larger than the sum of its proper divisors (22718497).

61165055 is a wasteful number, since it uses less digits than its factorization.

61165055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747585.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 61165055 is about 7820.8091013654. The cubic root of 61165055 is about 394.0044469423.

The spelling of 61165055 in words is "sixty-one million, one hundred sixty-five thousand, fifty-five".