55143304 has 8 divisors (see below), whose sum is σ = 103393710. Its totient is φ = 27571648.

The previous prime is 55143299. The next prime is 55143317. The reversal of 55143304 is 40334155.

It can be written as a sum of positive squares in only one way, i.e., 38415204 + 16728100 = 6198^2 + 4090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3446449 + ... + 3446464.

Almost surely, 2^55143304 is an apocalyptic number.

It is an amenable number.

55143304 is a deficient number, since it is larger than the sum of its proper divisors (48250406).

55143304 is a wasteful number, since it uses less digits than its factorization.

55143304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892919 (or 6892915 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 55143304 is about 7425.8537556297. The cubic root of 55143304 is about 380.6252495093.

Adding to 55143304 its reverse (40334155), we get a palindrome (95477459).

The spelling of 55143304 in words is "fifty-five million, one hundred forty-three thousand, three hundred four".