55528438 has 16 divisors (see below), whose sum is σ = 95825664. Its totient is φ = 23639400.

The previous prime is 55528387. The next prime is 55528441. The reversal of 55528438 is 83482555.

It is a self number, because there is not a number n which added to its sum of digits gives 55528438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11020 + ... + 15247.

It is an arithmetic number, because the mean of its divisors is an integer number (5989104).

Almost surely, 2^55528438 is an apocalyptic number.

55528438 is a deficient number, since it is larger than the sum of its proper divisors (40297226).

55528438 is a wasteful number, since it uses less digits than its factorization.

55528438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26427.

The product of its digits is 192000, while the sum is 40.

The square root of 55528438 is about 7451.7406020339. The cubic root of 55528438 is about 381.5093203762.

The spelling of 55528438 in words is "fifty-five million, five hundred twenty-eight thousand, four hundred thirty-eight".