2513221532663 has 4 divisors (see below), whose sum is σ = 2515640418720. Its totient is φ = 2510802646608.

The previous prime is 2513221532623. The next prime is 2513221532669. The reversal of 2513221532663 is 3662351223152.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2513221532663 - 2¹⁸ = 2513221270519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2513221532663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513221532669) 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, 1209441470 + ... + 1209443547.

It is an arithmetic number, because the mean of its divisors is an integer number (628910104680).

Almost surely, 2^{2513221532663} is an apocalyptic number.

2513221532663 is a deficient number, since it is larger than the sum of its proper divisors (2418886057).

2513221532663 is a wasteful number, since it uses less digits than its factorization.

2513221532663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418886056.

The product of its digits is 388800, while the sum is 41.

The spelling of 2513221532663 in words is "two trillion, five hundred thirteen billion, two hundred twenty-one million, five hundred thirty-two thousand, six hundred sixty-three".