55005404 has 24 divisors (see below), whose sum is σ = 103366368. Its totient is φ = 25518080.

The previous prime is 55005359. The next prime is 55005449. The reversal of 55005404 is 40450055.

55005404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55005359) and next prime (55005449).

It is a self number, because there is not a number n which added to its sum of digits gives 55005404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869 + ... + 10524.

It is an arithmetic number, because the mean of its divisors is an integer number (4306932).

Almost surely, 2^55005404 is an apocalyptic number.

It is an amenable number.

55005404 is a deficient number, since it is larger than the sum of its proper divisors (48360964).

55005404 is a wasteful number, since it uses less digits than its factorization.

55005404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11485 (or 11483 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 55005404 is about 7416.5628157523. The cubic root of 55005404 is about 380.3077009137.

Adding to 55005404 its reverse (40450055), we get a palindrome (95455459).

The spelling of 55005404 in words is "fifty-five million, five thousand, four hundred four".