2500100129 has 2 divisors, whose sum is σ = 2500100130. Its totient is φ = 2500100128.

The previous prime is 2500100111. The next prime is 2500100137. The reversal of 2500100129 is 9210010052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1700737600 + 799362529 = 41240^2 + 28273^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500100129 - 2¹² = 2500096033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2500100129.

It is not a weakly prime, because it can be changed into another prime (2500108129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250050064 + 1250050065.

It is an arithmetic number, because the mean of its divisors is an integer number (1250050065).

Almost surely, 2^2500100129 is an apocalyptic number.

It is an amenable number.

2500100129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500100129 is an equidigital number, since it uses as much as digits as its factorization.

2500100129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2500100129 is about 50001.0012799744. The cubic root of 2500100129 is about 1357.2269275170.

The spelling of 2500100129 in words is "two billion, five hundred million, one hundred thousand, one hundred twenty-nine".