2516755842 has 12 divisors (see below), whose sum is σ = 5452971030. Its totient is φ = 838918608.

The previous prime is 2516755819. The next prime is 2516755847. The reversal of 2516755842 is 2485576152.

2516755842 is a `hidden beast` number, since 2 + 5 + 1 + 67 + 5 + 584 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2153052801 + 363703041 = 46401^2 + 19071^2 .

It is a super-2 number, since 2×2516755842² = 12668119936482257928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2516755847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69909867 + ... + 69909902.

Almost surely, 2^2516755842 is an apocalyptic number.

2516755842 is an abundant number, since it is smaller than the sum of its proper divisors (2936215188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2516755842 is a wasteful number, since it uses less digits than its factorization.

2516755842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139819777 (or 139819774 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 2516755842 is about 50167.2785987042. The cubic root of 2516755842 is about 1360.2342160773.

The spelling of 2516755842 in words is "two billion, five hundred sixteen million, seven hundred fifty-five thousand, eight hundred forty-two".