55266331 has 2 divisors, whose sum is σ = 55266332. Its totient is φ = 55266330.

The previous prime is 55266301. The next prime is 55266347. The reversal of 55266331 is 13366255.

55266331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55266331 - 2⁷ = 55266203 is a prime.

It is a super-4 number, since 4×55266331⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 55266293 and 55266302.

It is not a weakly prime, because it can be changed into another prime (55266301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27633165 + 27633166.

It is an arithmetic number, because the mean of its divisors is an integer number (27633166).

Almost surely, 2^55266331 is an apocalyptic number.

55266331 is a deficient number, since it is larger than the sum of its proper divisors (1).

55266331 is an equidigital number, since it uses as much as digits as its factorization.

55266331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 31.

The square root of 55266331 is about 7434.1328344333. The cubic root of 55266331 is about 380.9081028376.

The spelling of 55266331 in words is "fifty-five million, two hundred sixty-six thousand, three hundred thirty-one".