55263233 has 4 divisors (see below), whose sum is σ = 55278660. Its totient is φ = 55247808.

The previous prime is 55263199. The next prime is 55263239. The reversal of 55263233 is 33236255.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11478544 + 43784689 = 3388^2 + 6617^2 .

It is a cyclic number.

It is not a de Polignac number, because 55263233 - 2¹⁰ = 55262209 is a prime.

It is a super-2 number, since 2×55263233² = 6108049843224578, which contains 22 as substring.

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 = 55263196 and 55263205.

It is not an unprimeable number, because it can be changed into a prime (55263239) 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, 773 + ... + 10541.

It is an arithmetic number, because the mean of its divisors is an integer number (13819665).

It is a Proth number, since it is equal to 3373 ⋅ 2¹⁴ + 1 and 3373 < 2¹⁴.

Almost surely, 2^55263233 is an apocalyptic number.

It is an amenable number.

55263233 is a deficient number, since it is larger than the sum of its proper divisors (15427).

55263233 is an equidigital number, since it uses as much as digits as its factorization.

55263233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15426.

The product of its digits is 16200, while the sum is 29.

The square root of 55263233 is about 7433.9244682738. The cubic root of 55263233 is about 380.9009853315.

Adding to 55263233 its reverse (33236255), we get a palindrome (88499488).

The spelling of 55263233 in words is "fifty-five million, two hundred sixty-three thousand, two hundred thirty-three".