2569012493 has 4 divisors (see below), whose sum is σ = 2569375968. Its totient is φ = 2568649020.

The previous prime is 2569012489. The next prime is 2569012517. The reversal of 2569012493 is 3942109652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2569012493 - 2² = 2569012489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2569012493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2569012483) 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, 170921 + ... + 185342.

It is an arithmetic number, because the mean of its divisors is an integer number (642343992).

Almost surely, 2^2569012493 is an apocalyptic number.

It is an amenable number.

2569012493 is a deficient number, since it is larger than the sum of its proper divisors (363475).

2569012493 is an equidigital number, since it uses as much as digits as its factorization.

2569012493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363474.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 2569012493 is about 50685.4268305990. The cubic root of 2569012493 is about 1369.5842048968.

It can be divided in two parts, 25690 and 12493, that added together give a palindrome (38183).

The spelling of 2569012493 in words is "two billion, five hundred sixty-nine million, twelve thousand, four hundred ninety-three".