2265637523 has 4 divisors (see below), whose sum is σ = 2268391248. Its totient is φ = 2262883800.

The previous prime is 2265637513. The next prime is 2265637559. The reversal of 2265637523 is 3257365622.

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-2265637523 is a prime.

It is a super-2 number, since 2×2265637523² = 10266226771251151058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2265637513) 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, 1375628 + ... + 1377273.

It is an arithmetic number, because the mean of its divisors is an integer number (567097812).

Almost surely, 2^2265637523 is an apocalyptic number.

2265637523 is a deficient number, since it is larger than the sum of its proper divisors (2753725).

2265637523 is an equidigital number, since it uses as much as digits as its factorization.

2265637523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753724.

The product of its digits is 453600, while the sum is 41.

The square root of 2265637523 is about 47598.7134595043. The cubic root of 2265637523 is about 1313.3993880059.

The spelling of 2265637523 in words is "two billion, two hundred sixty-five million, six hundred thirty-seven thousand, five hundred twenty-three".