2490023251 has 2 divisors, whose sum is σ = 2490023252. Its totient is φ = 2490023250.

The previous prime is 2490023219. The next prime is 2490023279. The reversal of 2490023251 is 1523200942.

It is an a-pointer prime, because the next prime (2490023279) can be obtained adding 2490023251 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2490023251 - 2⁵ = 2490023219 is a prime.

It is not a weakly prime, because it can be changed into another prime (2490023351) 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, 1245011625 + 1245011626.

It is an arithmetic number, because the mean of its divisors is an integer number (1245011626).

Almost surely, 2^2490023251 is an apocalyptic number.

2490023251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2490023251 is an equidigital number, since it uses as much as digits as its factorization.

2490023251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2490023251 is about 49900.1327753745. The cubic root of 2490023251 is about 1355.4009971340.

The spelling of 2490023251 in words is "two billion, four hundred ninety million, twenty-three thousand, two hundred fifty-one".