2259520013 has 4 divisors (see below), whose sum is σ = 2261167068. Its totient is φ = 2257872960.

The previous prime is 2259519989. The next prime is 2259520027. The reversal of 2259520013 is 3100259522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3100259522 = 2 ⋅1550129761.

It can be written as a sum of positive squares in 2 ways, for example, as 2128715044 + 130804969 = 46138^2 + 11437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2259520013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2259520213) 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, 821468 + ... + 824213.

It is an arithmetic number, because the mean of its divisors is an integer number (565291767).

Almost surely, 2^2259520013 is an apocalyptic number.

It is an amenable number.

2259520013 is a deficient number, since it is larger than the sum of its proper divisors (1647055).

2259520013 is a wasteful number, since it uses less digits than its factorization.

2259520013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647054.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2259520013 is about 47534.4087267318. The cubic root of 2259520013 is about 1312.2162072194.

Adding to 2259520013 its reverse (3100259522), we get a palindrome (5359779535).

The spelling of 2259520013 in words is "two billion, two hundred fifty-nine million, five hundred twenty thousand, thirteen".