2516209231 has 2 divisors, whose sum is σ = 2516209232. Its totient is φ = 2516209230.

The previous prime is 2516209193. The next prime is 2516209243. The reversal of 2516209231 is 1329026152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2516209231 - 2⁷ = 2516209103 is a prime.

It is a super-2 number, since 2×2516209231² = 12662617788339222722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2516209193 and 2516209202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2516209261) 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 as a sum of consecutive naturals, namely, 1258104615 + 1258104616.

It is an arithmetic number, because the mean of its divisors is an integer number (1258104616).

Almost surely, 2^2516209231 is an apocalyptic number.

2516209231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516209231 is an equidigital number, since it uses as much as digits as its factorization.

2516209231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2516209231 is about 50161.8304191544. The cubic root of 2516209231 is about 1360.1357331008.

The spelling of 2516209231 in words is "two billion, five hundred sixteen million, two hundred nine thousand, two hundred thirty-one".