55332533 has 4 divisors (see below), whose sum is σ = 55380108. Its totient is φ = 55284960.

The previous prime is 55332523. The next prime is 55332539. The reversal of 55332533 is 33523355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33523355 = 5 ⋅6704671.

It can be written as a sum of positive squares in 2 ways, for example, as 32512804 + 22819729 = 5702^2 + 4777^2 .

It is a cyclic number.

It is not a de Polignac number, because 55332533 - 2⁴ = 55332517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55332496 and 55332505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55332539) 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, 21998 + ... + 24383.

It is an arithmetic number, because the mean of its divisors is an integer number (13845027).

Almost surely, 2^55332533 is an apocalyptic number.

It is an amenable number.

55332533 is a deficient number, since it is larger than the sum of its proper divisors (47575).

55332533 is a wasteful number, since it uses less digits than its factorization.

55332533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47574.

The product of its digits is 20250, while the sum is 29.

The square root of 55332533 is about 7438.5840722546. The cubic root of 55332533 is about 381.0601352209.

Adding to 55332533 its reverse (33523355), we get a palindrome (88855888).

The spelling of 55332533 in words is "fifty-five million, three hundred thirty-two thousand, five hundred thirty-three".