2518765651 has 2 divisors, whose sum is σ = 2518765652. Its totient is φ = 2518765650.

The previous prime is 2518765591. The next prime is 2518765657. The reversal of 2518765651 is 1565678152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2518765651 - 2⁷ = 2518765523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2518765657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259382825 + 1259382826.

It is an arithmetic number, because the mean of its divisors is an integer number (1259382826).

Almost surely, 2^2518765651 is an apocalyptic number.

2518765651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2518765651 is an equidigital number, since it uses as much as digits as its factorization.

2518765651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 46.

The square root of 2518765651 is about 50187.3056758380. The cubic root of 2518765651 is about 1360.5962010757.

The spelling of 2518765651 in words is "two billion, five hundred eighteen million, seven hundred sixty-five thousand, six hundred fifty-one".