2501120491 has 2 divisors, whose sum is σ = 2501120492. Its totient is φ = 2501120490.

The previous prime is 2501120473. The next prime is 2501120521. The reversal of 2501120491 is 1940211052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2501120491 - 2¹⁵ = 2501087723 is a prime.

It is not a weakly prime, because it can be changed into another prime (2901120491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250560245 + 1250560246.

It is an arithmetic number, because the mean of its divisors is an integer number (1250560246).

Almost surely, 2^2501120491 is an apocalyptic number.

2501120491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501120491 is an equidigital number, since it uses as much as digits as its factorization.

2501120491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2501120491 is about 50011.2036547812. The cubic root of 2501120491 is about 1357.4115433794.

The spelling of 2501120491 in words is "two billion, five hundred one million, one hundred twenty thousand, four hundred ninety-one".