55330733 has 4 divisors (see below), whose sum is σ = 58585500. Its totient is φ = 52075968.

The previous prime is 55330711. The next prime is 55330783. The reversal of 55330733 is 33703355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43586404 + 11744329 = 6602^2 + 3427^2 .

It is a cyclic number.

It is not a de Polignac number, because 55330733 - 2¹² = 55326637 is a prime.

It is a super-2 number, since 2×55330733² = 6122980028634578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55330696 and 55330705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55330783) 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, 1627358 + ... + 1627391.

It is an arithmetic number, because the mean of its divisors is an integer number (14646375).

Almost surely, 2^55330733 is an apocalyptic number.

It is an amenable number.

55330733 is a deficient number, since it is larger than the sum of its proper divisors (3254767).

55330733 is a wasteful number, since it uses less digits than its factorization.

55330733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254766.

The product of its (nonzero) digits is 14175, while the sum is 29.

The square root of 55330733 is about 7438.4630805026. The cubic root of 55330733 is about 381.0560031390.

The spelling of 55330733 in words is "fifty-five million, three hundred thirty thousand, seven hundred thirty-three".