5515142561 has 8 divisors (see below), whose sum is σ = 5756084160. Its totient is φ = 5274297072.

The previous prime is 5515142557. The next prime is 5515142579. The reversal of 5515142561 is 1652415155.

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

It is not a de Polignac number, because 5515142561 - 2² = 5515142557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515142161) 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, 108971 + ... + 151343.

It is an arithmetic number, because the mean of its divisors is an integer number (719510520).

Almost surely, 2^5515142561 is an apocalyptic number.

It is an amenable number.

5515142561 is a deficient number, since it is larger than the sum of its proper divisors (240941599).

5515142561 is a wasteful number, since it uses less digits than its factorization.

5515142561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48055.

The product of its digits is 30000, while the sum is 35.

The square root of 5515142561 is about 74264.0058238175. The cubic root of 5515142561 is about 1766.7926382505.

The spelling of 5515142561 in words is "five billion, five hundred fifteen million, one hundred forty-two thousand, five hundred sixty-one".