55551412 has 12 divisors (see below), whose sum is σ = 111102880. Its totient is φ = 23807736.

The previous prime is 55551409. The next prime is 55551437. The reversal of 55551412 is 21415555.

55551412 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1983979 = 55551412 / (5 + 5 + 5 + 5 + 1 + 4 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991962 + ... + 992017.

Almost surely, 2^55551412 is an apocalyptic number.

It is an amenable number.

55551412 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.

55551412 is a wasteful number, since it uses less digits than its factorization.

55551412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983990 (or 1983988 counting only the distinct ones).

The product of its digits is 5000, while the sum is 28.

The square root of 55551412 is about 7453.2819616596. The cubic root of 55551412 is about 381.5619275745.

Adding to 55551412 its reverse (21415555), we get a palindrome (76966967).

The spelling of 55551412 in words is "fifty-five million, five hundred fifty-one thousand, four hundred twelve".