55213846 has 16 divisors (see below), whose sum is σ = 86623200. Its totient is φ = 26394984.

The previous prime is 55213843. The next prime is 55213853. The reversal of 55213846 is 64831255.

It is a super-2 number, since 2×55213846² = 6097137580223432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55213843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23200 + ... + 25468.

It is an arithmetic number, because the mean of its divisors is an integer number (5413950).

Almost surely, 2^55213846 is an apocalyptic number.

55213846 is a deficient number, since it is larger than the sum of its proper divisors (31409354).

55213846 is an equidigital number, since it uses as much as digits as its factorization.

55213846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340 (or 2294 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 55213846 is about 7430.6019944551. The cubic root of 55213846 is about 380.7874851344.

The spelling of 55213846 in words is "fifty-five million, two hundred thirteen thousand, eight hundred forty-six".