54445142 has 4 divisors (see below), whose sum is σ = 81667716. Its totient is φ = 27222570.

The previous prime is 54445133. The next prime is 54445147. The reversal of 54445142 is 24154445.

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 (54445147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13611284 + ... + 13611287.

It is an arithmetic number, because the mean of its divisors is an integer number (20416929).

Almost surely, 2^54445142 is an apocalyptic number.

54445142 is a deficient number, since it is larger than the sum of its proper divisors (27222574).

54445142 is a wasteful number, since it uses less digits than its factorization.

54445142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27222573.

The product of its digits is 12800, while the sum is 29.

The square root of 54445142 is about 7378.6951420966. The cubic root of 54445142 is about 379.0120736982.

Adding to 54445142 its reverse (24154445), we get a palindrome (78599587).

The spelling of 54445142 in words is "fifty-four million, four hundred forty-five thousand, one hundred forty-two".