56542433 has 4 divisors (see below), whose sum is σ = 57258240. Its totient is φ = 55826628.

The previous prime is 56542427. The next prime is 56542471. The reversal of 56542433 is 33424565.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33424565 = 5 ⋅6684913.

It is a cyclic number.

It is not a de Polignac number, because 56542433 - 2⁴ = 56542417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56542433.

It is not an unprimeable number, because it can be changed into a prime (56542933) 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, 357785 + ... + 357942.

It is an arithmetic number, because the mean of its divisors is an integer number (14314560).

Almost surely, 2^56542433 is an apocalyptic number.

It is an amenable number.

56542433 is a deficient number, since it is larger than the sum of its proper divisors (715807).

56542433 is an equidigital number, since it uses as much as digits as its factorization.

56542433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715806.

The product of its digits is 43200, while the sum is 32.

The square root of 56542433 is about 7519.4702605968. The cubic root of 56542433 is about 383.8175515837.

Adding to 56542433 its reverse (33424565), we get a palindrome (89966998).

The spelling of 56542433 in words is "fifty-six million, five hundred forty-two thousand, four hundred thirty-three".