2516351129 has 2 divisors, whose sum is σ = 2516351130. Its totient is φ = 2516351128.

The previous prime is 2516351113. The next prime is 2516351143. The reversal of 2516351129 is 9211536152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2270331904 + 246019225 = 47648^2 + 15685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2516351129 - 2⁴ = 2516351113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2516351729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258175564 + 1258175565.

It is an arithmetic number, because the mean of its divisors is an integer number (1258175565).

Almost surely, 2^2516351129 is an apocalyptic number.

It is an amenable number.

2516351129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516351129 is an equidigital number, since it uses as much as digits as its factorization.

2516351129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 35.

The square root of 2516351129 is about 50163.2448013483. The cubic root of 2516351129 is about 1360.1613002529.

The spelling of 2516351129 in words is "two billion, five hundred sixteen million, three hundred fifty-one thousand, one hundred twenty-nine".