2542542263 has 2 divisors, whose sum is σ = 2542542264. Its totient is φ = 2542542262.

The previous prime is 2542542203. The next prime is 2542542271. The reversal of 2542542263 is 3622452452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2542542263 is a prime.

It is a super-2 number, since 2×2542542263² = 12929042318282322338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2542542203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271271131 + 1271271132.

It is an arithmetic number, because the mean of its divisors is an integer number (1271271132).

Almost surely, 2^2542542263 is an apocalyptic number.

2542542263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542542263 is an equidigital number, since it uses as much as digits as its factorization.

2542542263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 35.

The square root of 2542542263 is about 50423.6280229814. The cubic root of 2542542263 is about 1364.8640461767.

The spelling of 2542542263 in words is "two billion, five hundred forty-two million, five hundred forty-two thousand, two hundred sixty-three".