55212353 has 4 divisors (see below), whose sum is σ = 63099840. Its totient is φ = 47324868.

The previous prime is 55212343. The next prime is 55212359. The reversal of 55212353 is 35321255.

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.

It is a cyclic number.

It is not a de Polignac number, because 55212353 - 2²² = 51018049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55212359) 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, 3943733 + ... + 3943746.

It is an arithmetic number, because the mean of its divisors is an integer number (15774960).

Almost surely, 2^55212353 is an apocalyptic number.

It is an amenable number.

55212353 is a deficient number, since it is larger than the sum of its proper divisors (7887487).

55212353 is an equidigital number, since it uses as much as digits as its factorization.

55212353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7887486.

The product of its digits is 4500, while the sum is 26.

The square root of 55212353 is about 7430.5015308524. The cubic root of 55212353 is about 380.7840528985.

The spelling of 55212353 in words is "fifty-five million, two hundred twelve thousand, three hundred fifty-three".