55257833 has 4 divisors (see below), whose sum is σ = 58166160. Its totient is φ = 52349508.

The previous prime is 55257823. The next prime is 55257857. The reversal of 55257833 is 33875255.

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: 33875255 = 5 ⋅6775051.

It is a cyclic number.

It is not a de Polignac number, because 55257833 - 2⁴ = 55257817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55257823) 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, 1454135 + ... + 1454172.

It is an arithmetic number, because the mean of its divisors is an integer number (14541540).

Almost surely, 2^55257833 is an apocalyptic number.

It is an amenable number.

55257833 is a deficient number, since it is larger than the sum of its proper divisors (2908327).

55257833 is a wasteful number, since it uses less digits than its factorization.

55257833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908326.

The product of its digits is 126000, while the sum is 38.

The square root of 55257833 is about 7433.5612595848. The cubic root of 55257833 is about 380.8885784550. Note that the first 3 decimals are identical.

It can be divided in two parts, 552 and 57833, that added together give a palindrome (58385).

The spelling of 55257833 in words is "fifty-five million, two hundred fifty-seven thousand, eight hundred thirty-three".