2135553263 has 2 divisors, whose sum is σ = 2135553264. Its totient is φ = 2135553262.

The previous prime is 2135553229. The next prime is 2135553269. The reversal of 2135553263 is 3623555312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2135553263 - 2²² = 2131358959 is a prime.

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 (2135553269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067776631 + 1067776632.

It is an arithmetic number, because the mean of its divisors is an integer number (1067776632).

Almost surely, 2^2135553263 is an apocalyptic number.

2135553263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135553263 is an equidigital number, since it uses as much as digits as its factorization.

2135553263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 35.

The square root of 2135553263 is about 46212.0467302629. The cubic root of 2135553263 is about 1287.7655493736.

The spelling of 2135553263 in words is "two billion, one hundred thirty-five million, five hundred fifty-three thousand, two hundred sixty-three".