56481263 has 4 divisors (see below), whose sum is σ = 57683040. Its totient is φ = 55279488.

The previous prime is 56481253. The next prime is 56481283. The reversal of 56481263 is 36218465.

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 56481263 - 2²⁴ = 39704047 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 (56481223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600818 + ... + 600911.

It is an arithmetic number, because the mean of its divisors is an integer number (14420760).

Almost surely, 2^56481263 is an apocalyptic number.

56481263 is a deficient number, since it is larger than the sum of its proper divisors (1201777).

56481263 is a wasteful number, since it uses less digits than its factorization.

56481263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201776.

The product of its digits is 34560, while the sum is 35.

The square root of 56481263 is about 7515.4017191365. The cubic root of 56481263 is about 383.6790916105.

The spelling of 56481263 in words is "fifty-six million, four hundred eighty-one thousand, two hundred sixty-three".