2115527563 has 4 divisors (see below), whose sum is σ = 2115680328. Its totient is φ = 2115374800.

The previous prime is 2115527543. The next prime is 2115527569. The reversal of 2115527563 is 3657255112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2115527563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115527569) 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, 53281 + ... + 84082.

It is an arithmetic number, because the mean of its divisors is an integer number (528920082).

Almost surely, 2^2115527563 is an apocalyptic number.

2115527563 is a deficient number, since it is larger than the sum of its proper divisors (152765).

2115527563 is a wasteful number, since it uses less digits than its factorization.

2115527563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152764.

The product of its digits is 63000, while the sum is 37.

The square root of 2115527563 is about 45994.8645285536. The cubic root of 2115527563 is about 1283.7276515544.

The spelling of 2115527563 in words is "two billion, one hundred fifteen million, five hundred twenty-seven thousand, five hundred sixty-three".