55142234 has 8 divisors (see below), whose sum is σ = 94529568. Its totient is φ = 23632380.

The previous prime is 55142189. The next prime is 55142239. The reversal of 55142234 is 43224155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55142239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969352 + ... + 1969379.

It is an arithmetic number, because the mean of its divisors is an integer number (11816196).

Almost surely, 2^55142234 is an apocalyptic number.

55142234 is a deficient number, since it is larger than the sum of its proper divisors (39387334).

55142234 is a wasteful number, since it uses less digits than its factorization.

55142234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938740.

The product of its digits is 4800, while the sum is 26.

The square root of 55142234 is about 7425.7817096923. The cubic root of 55142234 is about 380.6227876108.

Adding to 55142234 its reverse (43224155), we get a palindrome (98366389).

The spelling of 55142234 in words is "fifty-five million, one hundred forty-two thousand, two hundred thirty-four".