55345612 has 12 divisors (see below), whose sum is σ = 110691280. Its totient is φ = 23719536.

The previous prime is 55345597. The next prime is 55345657. The reversal of 55345612 is 21654355.

55345612 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988287 + ... + 988342.

Almost surely, 2^55345612 is an apocalyptic number.

It is an amenable number.

55345612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55345612 is a wasteful number, since it uses less digits than its factorization.

55345612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976640 (or 1976638 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 55345612 is about 7439.4631526744. The cubic root of 55345612 is about 381.0901566966.

Adding to 55345612 its reverse (21654355), we get a palindrome (76999967).

The spelling of 55345612 in words is "fifty-five million, three hundred forty-five thousand, six hundred twelve".