263013053601 has 4 divisors (see below), whose sum is σ = 350684071472. Its totient is φ = 175342035732.

The previous prime is 263013053591. The next prime is 263013053617. The reversal of 263013053601 is 106350310362.

It is a happy number.

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 not a de Polignac number, because 263013053601 - 2⁹ = 263013053089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263013053621) 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, 43835508931 + ... + 43835508936.

It is an arithmetic number, because the mean of its divisors is an integer number (87671017868).

Almost surely, 2^263013053601 is an apocalyptic number.

It is an amenable number.

263013053601 is a deficient number, since it is larger than the sum of its proper divisors (87671017871).

263013053601 is an equidigital number, since it uses as much as digits as its factorization.

263013053601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87671017870.

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 263013053601 its reverse (106350310362), we get a palindrome (369363363963).

The spelling of 263013053601 in words is "two hundred sixty-three billion, thirteen million, fifty-three thousand, six hundred one".