2015505263 has 2 divisors, whose sum is σ = 2015505264. Its totient is φ = 2015505262.

The previous prime is 2015505169. The next prime is 2015505299. The reversal of 2015505263 is 3625055102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2015505263 - 2²⁶ = 1948396399 is a prime.

It is a super-2 number, since 2×2015505263² = 8124522930361398338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015505463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007752631 + 1007752632.

It is an arithmetic number, because the mean of its divisors is an integer number (1007752632).

Almost surely, 2^2015505263 is an apocalyptic number.

2015505263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015505263 is an equidigital number, since it uses as much as digits as its factorization.

2015505263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 2015505263 is about 44894.3789688642. The cubic root of 2015505263 is about 1263.1685732198.

The spelling of 2015505263 in words is "two billion, fifteen million, five hundred five thousand, two hundred sixty-three".