55229533 has 4 divisors (see below), whose sum is σ = 55470940. Its totient is φ = 54988128.

The previous prime is 55229519. The next prime is 55229579. The reversal of 55229533 is 33592255.

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 32695524 + 22534009 = 5718^2 + 4747^2 .

It is a cyclic number.

It is not a de Polignac number, because 55229533 - 2²¹ = 53132381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55229513) 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, 120360 + ... + 120817.

It is an arithmetic number, because the mean of its divisors is an integer number (13867735).

Almost surely, 2^55229533 is an apocalyptic number.

It is an amenable number.

55229533 is a deficient number, since it is larger than the sum of its proper divisors (241407).

55229533 is a wasteful number, since it uses less digits than its factorization.

55229533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241406.

The product of its digits is 40500, while the sum is 34.

The square root of 55229533 is about 7431.6574867253. The cubic root of 55229533 is about 380.8235440103.

The spelling of 55229533 in words is "fifty-five million, two hundred twenty-nine thousand, five hundred thirty-three".