55004542 has 16 divisors (see below), whose sum is σ = 83754000. Its totient is φ = 27089920.

The previous prime is 55004539. The next prime is 55004549. The reversal of 55004542 is 24540055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55004549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38334 + ... + 39742.

It is an arithmetic number, because the mean of its divisors is an integer number (5234625).

Almost surely, 2^55004542 is an apocalyptic number.

55004542 is a deficient number, since it is larger than the sum of its proper divisors (28749458).

55004542 is a wasteful number, since it uses less digits than its factorization.

55004542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 55004542 is about 7416.5047023514. The cubic root of 55004542 is about 380.3057142789.

Adding to 55004542 its reverse (24540055), we get a palindrome (79544597).

The spelling of 55004542 in words is "fifty-five million, four thousand, five hundred forty-two".