55253433 has 4 divisors (see below), whose sum is σ = 73671248. Its totient is φ = 36835620.

The previous prime is 55253411. The next prime is 55253437. The reversal of 55253433 is 33435255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55253433 - 2⁶ = 55253369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55253433.

It is not an unprimeable number, because it can be changed into a prime (55253437) 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, 9208903 + ... + 9208908.

It is an arithmetic number, because the mean of its divisors is an integer number (18417812).

Almost surely, 2^55253433 is an apocalyptic number.

It is an amenable number.

55253433 is a deficient number, since it is larger than the sum of its proper divisors (18417815).

55253433 is a wasteful number, since it uses less digits than its factorization.

55253433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18417814.

The product of its digits is 27000, while the sum is 30.

The square root of 55253433 is about 7433.2652986423. The cubic root of 55253433 is about 380.8784685506.

Adding to 55253433 its reverse (33435255), we get a palindrome (88688688).

The spelling of 55253433 in words is "fifty-five million, two hundred fifty-three thousand, four hundred thirty-three".