2518522961 has 2 divisors, whose sum is σ = 2518522962. Its totient is φ = 2518522960.

The previous prime is 2518522957. The next prime is 2518523003. The reversal of 2518522961 is 1692258152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1973580625 + 544942336 = 44425^2 + 23344^2 .

It is a cyclic number.

It is not a de Polignac number, because 2518522961 - 2² = 2518522957 is a prime.

It is not a weakly prime, because it can be changed into another prime (2518522901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259261480 + 1259261481.

It is an arithmetic number, because the mean of its divisors is an integer number (1259261481).

Almost surely, 2^2518522961 is an apocalyptic number.

It is an amenable number.

2518522961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2518522961 is an equidigital number, since it uses as much as digits as its factorization.

2518522961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 41.

The square root of 2518522961 is about 50184.8877751062. The cubic root of 2518522961 is about 1360.5525006097.

The spelling of 2518522961 in words is "two billion, five hundred eighteen million, five hundred twenty-two thousand, nine hundred sixty-one".