55005401 has 4 divisors (see below), whose sum is σ = 60005904. Its totient is φ = 50004900.

The previous prime is 55005359. The next prime is 55005449. The reversal of 55005401 is 10450055.

55005401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55005401 - 2⁶ = 55005337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55005451) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2500235 + ... + 2500256.

It is an arithmetic number, because the mean of its divisors is an integer number (15001476).

Almost surely, 2^55005401 is an apocalyptic number.

It is an amenable number.

55005401 is a deficient number, since it is larger than the sum of its proper divisors (5000503).

55005401 is a wasteful number, since it uses less digits than its factorization.

55005401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000502.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 55005401 is about 7416.5626135023. The cubic root of 55005401 is about 380.3076939997.

Adding to 55005401 its reverse (10450055), we get a palindrome (65455456).

It can be divided in two parts, 5500 and 5401, that added together give a palindrome (10901).

The spelling of 55005401 in words is "fifty-five million, five thousand, four hundred one".