55453312 has 16 divisors (see below), whose sum is σ = 110473650. Its totient is φ = 27726592.

The previous prime is 55453291. The next prime is 55453367. The reversal of 55453312 is 21335455.

It can be written as a sum of positive squares in only one way, i.e., 48776256 + 6677056 = 6984^2 + 2584^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216487 + ... + 216742.

Almost surely, 2^55453312 is an apocalyptic number.

It is an amenable number.

55453312 is a deficient number, since it is larger than the sum of its proper divisors (55020338).

55453312 is an equidigital number, since it uses as much as digits as its factorization.

55453312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433243 (or 433231 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 55453312 is about 7446.6980602143. The cubic root of 55453312 is about 381.3371911303.

Adding to 55453312 its reverse (21335455), we get a palindrome (76788767).

The spelling of 55453312 in words is "fifty-five million, four hundred fifty-three thousand, three hundred twelve".