55142434 has 16 divisors (see below), whose sum is σ = 84260736. Its totient is φ = 27059200.

The previous prime is 55142429. The next prime is 55142447. The reversal of 55142434 is 43424155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35739 + ... + 37249.

It is an arithmetic number, because the mean of its divisors is an integer number (5266296).

Almost surely, 2^55142434 is an apocalyptic number.

55142434 is a deficient number, since it is larger than the sum of its proper divisors (29118302).

55142434 is a wasteful number, since it uses less digits than its factorization.

55142434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841.

The product of its digits is 9600, while the sum is 28.

The square root of 55142434 is about 7425.7951762757. The cubic root of 55142434 is about 380.6232477812.

Adding to 55142434 its reverse (43424155), we get a palindrome (98566589).

The spelling of 55142434 in words is "fifty-five million, one hundred forty-two thousand, four hundred thirty-four".