55143262 has 4 divisors (see below), whose sum is σ = 82714896. Its totient is φ = 27571630.

The previous prime is 55143247. The next prime is 55143281. The reversal of 55143262 is 26234155.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55143262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13785814 + ... + 13785817.

It is an arithmetic number, because the mean of its divisors is an integer number (20678724).

Almost surely, 2^55143262 is an apocalyptic number.

55143262 is a deficient number, since it is larger than the sum of its proper divisors (27571634).

55143262 is a wasteful number, since it uses less digits than its factorization.

55143262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27571633.

The product of its digits is 7200, while the sum is 28.

The square root of 55143262 is about 7425.8509276715. The cubic root of 55143262 is about 380.6251528747.

The spelling of 55143262 in words is "fifty-five million, one hundred forty-three thousand, two hundred sixty-two".