55268331 has 4 divisors (see below), whose sum is σ = 73691112. Its totient is φ = 36845552.

The previous prime is 55268329. The next prime is 55268351. The reversal of 55268331 is 13386255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55268331 - 2¹ = 55268329 is a prime.

It is a super-2 number, since 2×55268331² = 6109176823051122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55268292 and 55268301.

It is not an unprimeable number, because it can be changed into a prime (55268351) 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, 9211386 + ... + 9211391.

It is an arithmetic number, because the mean of its divisors is an integer number (18422778).

Almost surely, 2^55268331 is an apocalyptic number.

55268331 is a deficient number, since it is larger than the sum of its proper divisors (18422781).

55268331 is a wasteful number, since it uses less digits than its factorization.

55268331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18422780.

The product of its digits is 21600, while the sum is 33.

The square root of 55268331 is about 7434.2673478965. The cubic root of 55268331 is about 380.9126976003.

The spelling of 55268331 in words is "fifty-five million, two hundred sixty-eight thousand, three hundred thirty-one".