2515245306929 has 2 divisors, whose sum is σ = 2515245306930. Its totient is φ = 2515245306928.

The previous prime is 2515245306919. The next prime is 2515245306943. The reversal of 2515245306929 is 9296035425152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2001299696929 + 513945610000 = 1414673^2 + 716900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2515245306929 is a prime.

It is a super-2 number, since 2×2515245306929² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2515245306919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257622653464 + 1257622653465.

It is an arithmetic number, because the mean of its divisors is an integer number (1257622653465).

Almost surely, 2^{2515245306929} is an apocalyptic number.

It is an amenable number.

2515245306929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515245306929 is an equidigital number, since it uses as much as digits as its factorization.

2515245306929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 2515245306929 in words is "two trillion, five hundred fifteen billion, two hundred forty-five million, three hundred six thousand, nine hundred twenty-nine".