55525042 has 16 divisors (see below), whose sum is σ = 84188160. Its totient is φ = 27464272.

The previous prime is 55525039. The next prime is 55525069. The reversal of 55525042 is 24052555.

It is a self number, because there is not a number n which added to its sum of digits gives 55525042.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132309 + ... + 132727.

It is an arithmetic number, because the mean of its divisors is an integer number (5261760).

Almost surely, 2^55525042 is an apocalyptic number.

55525042 is a deficient number, since it is larger than the sum of its proper divisors (28663118).

55525042 is a wasteful number, since it uses less digits than its factorization.

55525042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 55525042 is about 7451.5127323249. The cubic root of 55525042 is about 381.5015427875.

Adding to 55525042 its reverse (24052555), we get a palindrome (79577597).

The spelling of 55525042 in words is "fifty-five million, five hundred twenty-five thousand, forty-two".