2515625729 has 2 divisors, whose sum is σ = 2515625730. Its totient is φ = 2515625728.

The previous prime is 2515625719. The next prime is 2515625731. The reversal of 2515625729 is 9275265152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2291824129 + 223801600 = 47873^2 + 14960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2515625729 is a prime.

Together with 2515625731, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2515625729.

It is not a weakly prime, because it can be changed into another prime (2515625719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257812864 + 1257812865.

It is an arithmetic number, because the mean of its divisors is an integer number (1257812865).

Almost surely, 2^2515625729 is an apocalyptic number.

It is an amenable number.

2515625729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515625729 is an equidigital number, since it uses as much as digits as its factorization.

2515625729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 44.

The square root of 2515625729 is about 50156.0138866717. The cubic root of 2515625729 is about 1360.0305877276.

The spelling of 2515625729 in words is "two billion, five hundred fifteen million, six hundred twenty-five thousand, seven hundred twenty-nine".