2497036991 has 2 divisors, whose sum is σ = 2497036992. Its totient is φ = 2497036990.

The previous prime is 2497036973. The next prime is 2497037017. The reversal of 2497036991 is 1996307942.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2497036991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2497036901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248518495 + 1248518496.

It is an arithmetic number, because the mean of its divisors is an integer number (1248518496).

Almost surely, 2^2497036991 is an apocalyptic number.

2497036991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2497036991 is an equidigital number, since it uses as much as digits as its factorization.

2497036991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 2497036991 is about 49970.3611253711. The cubic root of 2497036991 is about 1356.6724067381.

The spelling of 2497036991 in words is "two billion, four hundred ninety-seven million, thirty-six thousand, nine hundred ninety-one".