2513502161 has 2 divisors, whose sum is σ = 2513502162. Its totient is φ = 2513502160.

The previous prime is 2513502149. The next prime is 2513502221. The reversal of 2513502161 is 1612053152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1669948225 + 843553936 = 40865^2 + 29044^2 .

It is a cyclic number.

It is not a de Polignac number, because 2513502161 - 2⁶ = 2513502097 is a prime.

It is a super-2 number, since 2×2513502161² = 12635386226703339842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2513502161.

It is not a weakly prime, because it can be changed into another prime (2513502461) 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, 1256751080 + 1256751081.

It is an arithmetic number, because the mean of its divisors is an integer number (1256751081).

Almost surely, 2^2513502161 is an apocalyptic number.

It is an amenable number.

2513502161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2513502161 is an equidigital number, since it uses as much as digits as its factorization.

2513502161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2513502161 is about 50134.8397923041. The cubic root of 2513502161 is about 1359.6477895961.

The spelling of 2513502161 in words is "two billion, five hundred thirteen million, five hundred two thousand, one hundred sixty-one".