55143416 has 16 divisors (see below), whose sum is σ = 103639200. Its totient is φ = 27506304.

The previous prime is 55143391. The next prime is 55143449. The reversal of 55143416 is 61434155.

It is a happy number.

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, 4496 + ... + 11423.

It is an arithmetic number, because the mean of its divisors is an integer number (6477450).

Almost surely, 2^55143416 is an apocalyptic number.

It is an amenable number.

55143416 is a deficient number, since it is larger than the sum of its proper divisors (48495784).

55143416 is a wasteful number, since it uses less digits than its factorization.

55143416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16358 (or 16354 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 55143416 is about 7425.8612968463. The cubic root of 55143416 is about 380.6255072015.

The spelling of 55143416 in words is "fifty-five million, one hundred forty-three thousand, four hundred sixteen".