2513789 has 4 divisors (see below), whose sum is σ = 2538780. Its totient is φ = 2488800.

The previous prime is 2513761. The next prime is 2513801. The reversal of 2513789 is 9873152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1085764 + 1428025 = 1042^2 + 1195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2513789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513729) 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, 12344 + ... + 12545.

It is an arithmetic number, because the mean of its divisors is an integer number (634695).

2^2513789 is an apocalyptic number.

It is an amenable number.

2513789 is a deficient number, since it is larger than the sum of its proper divisors (24991).

2513789 is a wasteful number, since it uses less digits than its factorization.

2513789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24990.

The product of its digits is 15120, while the sum is 35.

The square root of 2513789 is about 1585.4932986298. The cubic root of 2513789 is about 135.9699508294.

The spelling of 2513789 in words is "two million, five hundred thirteen thousand, seven hundred eighty-nine".