55356404 has 12 divisors (see below), whose sum is σ = 96974724. Its totient is φ = 27649344.

The previous prime is 55356397. The next prime is 55356407. The reversal of 55356404 is 40465355.

It can be written as a sum of positive squares in 2 ways, for example, as 27583504 + 27772900 = 5252^2 + 5270^2 .

It is a super-2 number, since 2×55356404² = 6128662927622432, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55356407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2567 + ... + 10830.

It is an arithmetic number, because the mean of its divisors is an integer number (8081227).

Almost surely, 2^55356404 is an apocalyptic number.

It is an amenable number.

55356404 is a deficient number, since it is larger than the sum of its proper divisors (41618320).

55356404 is a wasteful number, since it uses less digits than its factorization.

55356404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14434 (or 14432 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 55356404 is about 7440.1884384739. The cubic root of 55356404 is about 381.1149250419.

The spelling of 55356404 in words is "fifty-five million, three hundred fifty-six thousand, four hundred four".