2563369453 has 4 divisors (see below), whose sum is σ = 2566935360. Its totient is φ = 2559803548.

The previous prime is 2563369409. The next prime is 2563369489. The reversal of 2563369453 is 3549633652.

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 a de Polignac number, because none of the positive numbers 2^k-2563369453 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 (2563369253) 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, 1781875 + ... + 1783312.

It is an arithmetic number, because the mean of its divisors is an integer number (641733840).

Almost surely, 2^2563369453 is an apocalyptic number.

It is an amenable number.

2563369453 is a deficient number, since it is larger than the sum of its proper divisors (3565907).

2563369453 is an equidigital number, since it uses as much as digits as its factorization.

2563369453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565906.

The product of its digits is 1749600, while the sum is 46.

The square root of 2563369453 is about 50629.7289445638. The cubic root of 2563369453 is about 1368.5806695915.

The spelling of 2563369453 in words is "two billion, five hundred sixty-three million, three hundred sixty-nine thousand, four hundred fifty-three".