2521610551 has 2 divisors, whose sum is σ = 2521610552. Its totient is φ = 2521610550.

The previous prime is 2521610549. The next prime is 2521610719. The reversal of 2521610551 is 1550161252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2521610551 - 2¹ = 2521610549 is a prime.

Together with 2521610549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2521610501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260805275 + 1260805276.

It is an arithmetic number, because the mean of its divisors is an integer number (1260805276).

Almost surely, 2^2521610551 is an apocalyptic number.

2521610551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521610551 is an equidigital number, since it uses as much as digits as its factorization.

2521610551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 2521610551 is about 50215.6405017401. The cubic root of 2521610551 is about 1361.1082645576.

The spelling of 2521610551 in words is "two billion, five hundred twenty-one million, six hundred ten thousand, five hundred fifty-one".