263105537053 has 4 divisors (see below), whose sum is σ = 263107290880. Its totient is φ = 263103783228.

The previous prime is 263105537039. The next prime is 263105537063. The reversal of 263105537053 is 350735501362.

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 a cyclic number.

It is not a de Polignac number, because 263105537053 - 2⁹ = 263105536541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263105536997 and 263105537015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263105537063) 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, 628413 + ... + 959746.

It is an arithmetic number, because the mean of its divisors is an integer number (65776822720).

Almost surely, 2^263105537053 is an apocalyptic number.

It is an amenable number.

263105537053 is a deficient number, since it is larger than the sum of its proper divisors (1753827).

263105537053 is a wasteful number, since it uses less digits than its factorization.

263105537053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753826.

The product of its (nonzero) digits is 283500, while the sum is 40.

The spelling of 263105537053 in words is "two hundred sixty-three billion, one hundred five million, five hundred thirty-seven thousand, fifty-three".