2516304431 has 4 divisors (see below), whose sum is σ = 2518239864. Its totient is φ = 2514369000.

The previous prime is 2516304409. The next prime is 2516304433. The reversal of 2516304431 is 1344036152.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2516304431 is a prime.

It is a super-2 number, since 2×2516304431² = 12663575978940467522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2516304394 and 2516304403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516304433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 965765 + ... + 968366.

It is an arithmetic number, because the mean of its divisors is an integer number (629559966).

Almost surely, 2^2516304431 is an apocalyptic number.

2516304431 is a deficient number, since it is larger than the sum of its proper divisors (1935433).

2516304431 is a wasteful number, since it uses less digits than its factorization.

2516304431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935432.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2516304431 is about 50162.7793388684. The cubic root of 2516304431 is about 1360.1528863231.

The spelling of 2516304431 in words is "two billion, five hundred sixteen million, three hundred four thousand, four hundred thirty-one".