2515523651 has 2 divisors, whose sum is σ = 2515523652. Its totient is φ = 2515523650.

The previous prime is 2515523603. The next prime is 2515523653. The reversal of 2515523651 is 1563255152.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2515523651 is a prime.

Together with 2515523653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2515523653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257761825 + 1257761826.

It is an arithmetic number, because the mean of its divisors is an integer number (1257761826).

Almost surely, 2^2515523651 is an apocalyptic number.

2515523651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515523651 is an equidigital number, since it uses as much as digits as its factorization.

2515523651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 35.

The square root of 2515523651 is about 50154.9962715580. The cubic root of 2515523651 is about 1360.0121918962.

The spelling of 2515523651 in words is "two billion, five hundred fifteen million, five hundred twenty-three thousand, six hundred fifty-one".