55388356 has 12 divisors (see below), whose sum is σ = 96994492. Its totient is φ = 27675648.

The previous prime is 55388327. The next prime is 55388357. The reversal of 55388356 is 65388355.

It can be written as a sum of positive squares in 2 ways, for example, as 4494400 + 50893956 = 2120^2 + 7134^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55388357) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3796 + ... + 11188.

Almost surely, 2^55388356 is an apocalyptic number.

It is an amenable number.

55388356 is a deficient number, since it is larger than the sum of its proper divisors (41606136).

55388356 is a wasteful number, since it uses less digits than its factorization.

55388356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9270 (or 9268 counting only the distinct ones).

The product of its digits is 432000, while the sum is 43.

The square root of 55388356 is about 7442.3353861540. The cubic root of 55388356 is about 381.1882381006.

Subtracting 55388356 from its reverse (65388355), we obtain a palindrome (9999999).

The spelling of 55388356 in words is "fifty-five million, three hundred eighty-eight thousand, three hundred fifty-six".