55719442 has 4 divisors (see below), whose sum is σ = 83579166. Its totient is φ = 27859720.

The previous prime is 55719439. The next prime is 55719467. The reversal of 55719442 is 24491755.

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., 54184321 + 1535121 = 7361^2 + 1239^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13929859 + ... + 13929862.

Almost surely, 2^55719442 is an apocalyptic number.

55719442 is a deficient number, since it is larger than the sum of its proper divisors (27859724).

55719442 is a wasteful number, since it uses less digits than its factorization.

55719442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27859723.

The product of its digits is 50400, while the sum is 37.

The square root of 55719442 is about 7464.5456660134. The cubic root of 55719442 is about 381.9462521348.

The spelling of 55719442 in words is "fifty-five million, seven hundred nineteen thousand, four hundred forty-two".