61165051 has 4 divisors (see below), whose sum is σ = 61180704. Its totient is φ = 61149400.

The previous prime is 61165043. The next prime is 61165057. The reversal of 61165051 is 15056116.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61165051 - 2³ = 61165043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61165057) 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, 3486 + ... + 11596.

It is an arithmetic number, because the mean of its divisors is an integer number (15295176).

Almost surely, 2^61165051 is an apocalyptic number.

61165051 is a deficient number, since it is larger than the sum of its proper divisors (15653).

61165051 is an equidigital number, since it uses as much as digits as its factorization.

61165051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15652.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 61165051 is about 7820.8088456374. The cubic root of 61165051 is about 394.0044383535.

The spelling of 61165051 in words is "sixty-one million, one hundred sixty-five thousand, fifty-one".