263504413 has 8 divisors (see below), whose sum is σ = 265537728. Its totient is φ = 261479424.

The previous prime is 263504389. The next prime is 263504429. The reversal of 263504413 is 314405362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 263504413 - 2¹³ = 263496221 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 (263504453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70920 + ... + 74542.

It is an arithmetic number, because the mean of its divisors is an integer number (33192216).

Almost surely, 2^263504413 is an apocalyptic number.

It is an amenable number.

263504413 is a deficient number, since it is larger than the sum of its proper divisors (2033315).

263504413 is a wasteful number, since it uses less digits than its factorization.

263504413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 263504413 is about 16232.8190096483. The cubic root of 263504413 is about 641.1051973021.

Adding to 263504413 its reverse (314405362), we get a palindrome (577909775).

The spelling of 263504413 in words is "two hundred sixty-three million, five hundred four thousand, four hundred thirteen".