55223456 has 24 divisors (see below), whose sum is σ = 110775924. Its totient is φ = 27089920.

The previous prime is 55223447. The next prime is 55223459. The reversal of 55223456 is 65432255.

It can be written as a sum of positive squares in 2 ways, for example, as 51552400 + 3671056 = 7180^2 + 1916^2 .

It is a super-3 number, since 3×55223456³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (55223459) 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, 14585 + ... + 17976.

Almost surely, 2^55223456 is an apocalyptic number.

It is an amenable number.

55223456 is an abundant number, since it is smaller than the sum of its proper divisors (55552468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55223456 is a wasteful number, since it uses less digits than its factorization.

55223456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32624 (or 32616 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 55223456 is about 7431.2486164843. The cubic root of 55223456 is about 380.8095759426.

The spelling of 55223456 in words is "fifty-five million, two hundred twenty-three thousand, four hundred fifty-six".