55252533 has 16 divisors (see below), whose sum is σ = 89147520. Its totient is φ = 29715456.

The previous prime is 55252529. The next prime is 55252541. The reversal of 55252533 is 33525255.

55252533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55252533 - 2² = 55252529 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55252533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55252573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77028 + ... + 77741.

It is an arithmetic number, because the mean of its divisors is an integer number (5571720).

Almost surely, 2^55252533 is an apocalyptic number.

It is an amenable number.

55252533 is a deficient number, since it is larger than the sum of its proper divisors (33894987).

55252533 is a wasteful number, since it uses less digits than its factorization.

55252533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154796.

The product of its digits is 22500, while the sum is 30.

The square root of 55252533 is about 7433.2047597251. The cubic root of 55252533 is about 380.8764005495.

Adding to 55252533 its reverse (33525255), we get a palindrome (88777788).

The spelling of 55252533 in words is "fifty-five million, two hundred fifty-two thousand, five hundred thirty-three".