56943535 has 16 divisors (see below), whose sum is σ = 75388320. Its totient is φ = 40944640.

The previous prime is 56943533. The next prime is 56943539. The reversal of 56943535 is 53534965.

It is a happy number.

It is not a de Polignac number, because 56943535 - 2¹ = 56943533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56943533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (4711770).

Almost surely, 2^56943535 is an apocalyptic number.

56943535 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56943535 is a deficient number, since it is larger than the sum of its proper divisors (18444785).

56943535 is a wasteful number, since it uses less digits than its factorization.

56943535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11738.

The product of its digits is 243000, while the sum is 40.

The square root of 56943535 is about 7546.0940227379. The cubic root of 56943535 is about 384.7229918346.

It can be divided in two parts, 5694 and 3535, that added together give a palindrome (9229).

The spelling of 56943535 in words is "fifty-six million, nine hundred forty-three thousand, five hundred thirty-five".