2275019987 has 4 divisors (see below), whose sum is σ = 2295891840. Its totient is φ = 2254148136.

The previous prime is 2275019969. The next prime is 2275019993. The reversal of 2275019987 is 7899105722.

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-2275019987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2275019947) 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, 10435763 + ... + 10435980.

It is an arithmetic number, because the mean of its divisors is an integer number (573972960).

Almost surely, 2^2275019987 is an apocalyptic number.

2275019987 is a deficient number, since it is larger than the sum of its proper divisors (20871853).

2275019987 is a wasteful number, since it uses less digits than its factorization.

2275019987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20871852.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 2275019987 is about 47697.1695910774. The cubic root of 2275019987 is about 1315.2099087101.

The spelling of 2275019987 in words is "two billion, two hundred seventy-five million, nineteen thousand, nine hundred eighty-seven".