55143334 has 4 divisors (see below), whose sum is σ = 82715004. Its totient is φ = 27571666.

The previous prime is 55143317. The next prime is 55143337. The reversal of 55143334 is 43334155.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55143337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13785832 + ... + 13785835.

It is an arithmetic number, because the mean of its divisors is an integer number (20678751).

Almost surely, 2^55143334 is an apocalyptic number.

55143334 is a deficient number, since it is larger than the sum of its proper divisors (27571670).

55143334 is a wasteful number, since it uses less digits than its factorization.

55143334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27571669.

The product of its digits is 10800, while the sum is 28.

The square root of 55143334 is about 7425.8557755992. The cubic root of 55143334 is about 380.6253185341.

Adding to 55143334 its reverse (43334155), we get a palindrome (98477489).

The spelling of 55143334 in words is "fifty-five million, one hundred forty-three thousand, three hundred thirty-four".