6250000129 has 2 divisors, whose sum is σ = 6250000130. Its totient is φ = 6250000128.

The previous prime is 6250000123. The next prime is 6250000147. The reversal of 6250000129 is 9210000526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6041486529 + 208513600 = 77727^2 + 14440^2 .

It is a cyclic number.

It is not a de Polignac number, because 6250000129 - 2⁹ = 6249999617 is a prime.

It is a super-2 number, since 2×6250000129² = 78125003225000033282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6250000123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3125000064 + 3125000065.

It is an arithmetic number, because the mean of its divisors is an integer number (3125000065).

Almost surely, 2^6250000129 is an apocalyptic number.

It is an amenable number.

6250000129 is a deficient number, since it is larger than the sum of its proper divisors (1).

6250000129 is an equidigital number, since it uses as much as digits as its factorization.

6250000129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 6250000129 is about 79056.9423200771. The cubic root of 6250000129 is about 1842.0157619933.

The spelling of 6250000129 in words is "six billion, two hundred fifty million, one hundred twenty-nine", and thus it is an aban number.