2491053963 has 4 divisors (see below), whose sum is σ = 3321405288. Its totient is φ = 1660702640.

The previous prime is 2491053953. The next prime is 2491053989. The reversal of 2491053963 is 3693501942.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2491053963 - 2⁴ = 2491053947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2491053913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415175658 + ... + 415175663.

It is an arithmetic number, because the mean of its divisors is an integer number (830351322).

Almost surely, 2^2491053963 is an apocalyptic number.

2491053963 is a deficient number, since it is larger than the sum of its proper divisors (830351325).

2491053963 is an equidigital number, since it uses as much as digits as its factorization.

2491053963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830351324.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 2491053963 is about 49910.4594549078. The cubic root of 2491053963 is about 1355.5879880729.

The spelling of 2491053963 in words is "two billion, four hundred ninety-one million, fifty-three thousand, nine hundred sixty-three".