54432442 has 4 divisors (see below), whose sum is σ = 81648666. Its totient is φ = 27216220.

The previous prime is 54432437. The next prime is 54432451. The reversal of 54432442 is 24423445.

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

It can be written as a sum of positive squares in only one way, i.e., 52867441 + 1565001 = 7271^2 + 1251^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 54432442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13608109 + ... + 13608112.

Almost surely, 2^54432442 is an apocalyptic number.

54432442 is a deficient number, since it is larger than the sum of its proper divisors (27216224).

54432442 is a wasteful number, since it uses less digits than its factorization.

54432442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27216223.

The product of its digits is 15360, while the sum is 28.

The square root of 54432442 is about 7377.8345061407. The cubic root of 54432442 is about 378.9826016616.

Adding to 54432442 its reverse (24423445), we get a palindrome (78855887).

The spelling of 54432442 in words is "fifty-four million, four hundred thirty-two thousand, four hundred forty-two".