56440263 has 8 divisors (see below), whose sum is σ = 82094976. Its totient is φ = 34206200.

The previous prime is 56440261. The next prime is 56440271. The reversal of 56440263 is 36204465.

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 56440263 - 2¹ = 56440261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56440263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56440261) 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, 855123 + ... + 855188.

It is an arithmetic number, because the mean of its divisors is an integer number (10261872).

Almost surely, 2^56440263 is an apocalyptic number.

56440263 is a deficient number, since it is larger than the sum of its proper divisors (25654713).

56440263 is a wasteful number, since it uses less digits than its factorization.

56440263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710325.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 56440263 is about 7512.6734921731. The cubic root of 56440263 is about 383.5862310179.

It can be divided in two parts, 564402 and 63, that added together give a palindrome (564465).

The spelling of 56440263 in words is "fifty-six million, four hundred forty thousand, two hundred sixty-three".