55258433 has 4 divisors (see below), whose sum is σ = 55297968. Its totient is φ = 55218900.

The previous prime is 55258421. The next prime is 55258439. The reversal of 55258433 is 33485255.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33485255 = 5 ⋅6697051.

It is a cyclic number.

It is not a de Polignac number, because 55258433 - 2¹⁰ = 55257409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55258393 and 55258402.

It is not an unprimeable number, because it can be changed into a prime (55258439) 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, 17591 + ... + 20492.

It is an arithmetic number, because the mean of its divisors is an integer number (13824492).

Almost surely, 2^55258433 is an apocalyptic number.

It is an amenable number.

55258433 is a deficient number, since it is larger than the sum of its proper divisors (39535).

55258433 is a wasteful number, since it uses less digits than its factorization.

55258433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39534.

The product of its digits is 72000, while the sum is 35.

The square root of 55258433 is about 7433.6016169822. The cubic root of 55258433 is about 380.8899570367.

It can be divided in two parts, 552 and 58433, that added together give a palindrome (58985).

The spelling of 55258433 in words is "fifty-five million, two hundred fifty-eight thousand, four hundred thirty-three".