55422542 has 8 divisors (see below), whose sum is σ = 95010096. Its totient is φ = 23752512.

The previous prime is 55422491. The next prime is 55422551. The reversal of 55422542 is 24522455.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1979363 + ... + 1979390.

It is an arithmetic number, because the mean of its divisors is an integer number (11876262).

Almost surely, 2^55422542 is an apocalyptic number.

55422542 is a deficient number, since it is larger than the sum of its proper divisors (39587554).

55422542 is a wasteful number, since it uses less digits than its factorization.

55422542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958762.

The product of its digits is 16000, while the sum is 29.

The square root of 55422542 is about 7444.6317571791. The cubic root of 55422542 is about 381.2666458019.

Adding to 55422542 its reverse (24522455), we get a palindrome (79944997).

The spelling of 55422542 in words is "fifty-five million, four hundred twenty-two thousand, five hundred forty-two".