2523209651 has 2 divisors, whose sum is σ = 2523209652. Its totient is φ = 2523209650.

The previous prime is 2523209587. The next prime is 2523209669. The reversal of 2523209651 is 1569023252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2523209651 - 2⁶ = 2523209587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2523209681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261604825 + 1261604826.

It is an arithmetic number, because the mean of its divisors is an integer number (1261604826).

Almost surely, 2^2523209651 is an apocalyptic number.

2523209651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523209651 is an equidigital number, since it uses as much as digits as its factorization.

2523209651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2523209651 is about 50231.5603082365. The cubic root of 2523209651 is about 1361.3959230801.

The spelling of 2523209651 in words is "two billion, five hundred twenty-three million, two hundred nine thousand, six hundred fifty-one".