55040733 has 12 divisors (see below), whose sum is σ = 86731008. Its totient is φ = 33357960.

The previous prime is 55040723. The next prime is 55040743. The reversal of 55040733 is 33704055.

It is a happy number.

55040733 is a `hidden beast` number, since 550 + 40 + 73 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (55040723) and next prime (55040743).

It is not a de Polignac number, because 55040733 - 2⁶ = 55040669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55040697 and 55040706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55040723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277885 + ... + 278082.

It is an arithmetic number, because the mean of its divisors is an integer number (7227584).

Almost surely, 2^55040733 is an apocalyptic number.

It is an amenable number.

55040733 is a deficient number, since it is larger than the sum of its proper divisors (31690275).

55040733 is a wasteful number, since it uses less digits than its factorization.

55040733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555984 (or 555981 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 55040733 is about 7418.9441971213. The cubic root of 55040733 is about 380.3891051290.

Adding to 55040733 its reverse (33704055), we get a palindrome (88744788).

The spelling of 55040733 in words is "fifty-five million, forty thousand, seven hundred thirty-three".