2633251081 has 2 divisors, whose sum is σ = 2633251082. Its totient is φ = 2633251080.

The previous prime is 2633251063. The next prime is 2633251133. The reversal of 2633251081 is 1801523362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1833209856 + 800041225 = 42816^2 + 28285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2633251081 is a prime.

It is a super-2 number, since 2×2633251081² = 13868022511175337122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2633251031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1316625540 + 1316625541.

It is an arithmetic number, because the mean of its divisors is an integer number (1316625541).

Almost surely, 2^2633251081 is an apocalyptic number.

It is an amenable number.

2633251081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2633251081 is an equidigital number, since it uses as much as digits as its factorization.

2633251081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2633251081 is about 51315.2129587318. The cubic root of 2633251081 is about 1380.9059165829.

The spelling of 2633251081 in words is "two billion, six hundred thirty-three million, two hundred fifty-one thousand, eighty-one".