55043633 has 4 divisors (see below), whose sum is σ = 55381488. Its totient is φ = 54705780.

The previous prime is 55043617. The next prime is 55043647. The reversal of 55043633 is 33634055.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 55043633 - 2⁴ = 55043617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55043596 and 55043605.

It is not an unprimeable number, because it can be changed into a prime (55043663) 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, 168683 + ... + 169008.

It is an arithmetic number, because the mean of its divisors is an integer number (13845372).

Almost surely, 2^55043633 is an apocalyptic number.

It is an amenable number.

55043633 is a deficient number, since it is larger than the sum of its proper divisors (337855).

55043633 is a wasteful number, since it uses less digits than its factorization.

55043633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337854.

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 55043633 is about 7419.1396401470. The cubic root of 55043633 is about 380.3957856907.

Adding to 55043633 its reverse (33634055), we get a palindrome (88677688).

The spelling of 55043633 in words is "fifty-five million, forty-three thousand, six hundred thirty-three".