55245142 has 8 divisors (see below), whose sum is σ = 82899432. Its totient is φ = 27612000.

The previous prime is 55245119. The next prime is 55245143. The reversal of 55245142 is 24154255.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55245142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55245143) 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, 6517 + ... + 12367.

It is an arithmetic number, because the mean of its divisors is an integer number (10362429).

Almost surely, 2^55245142 is an apocalyptic number.

55245142 is a deficient number, since it is larger than the sum of its proper divisors (27654290).

55245142 is a wasteful number, since it uses less digits than its factorization.

55245142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10574.

The product of its digits is 8000, while the sum is 28.

The square root of 55245142 is about 7432.7075820323. The cubic root of 55245142 is about 380.8594168152.

Adding to 55245142 its reverse (24154255), we get a palindrome (79399397).

The spelling of 55245142 in words is "fifty-five million, two hundred forty-five thousand, one hundred forty-two".