55400241 has 8 divisors (see below), whose sum is σ = 79549120. Its totient is φ = 34092432.

The previous prime is 55400203. The next prime is 55400243. The reversal of 55400241 is 14200455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55400241 - 2¹⁰ = 55399217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55400243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710221 + ... + 710298.

It is an arithmetic number, because the mean of its divisors is an integer number (9943640).

Almost surely, 2^55400241 is an apocalyptic number.

It is an amenable number.

55400241 is a deficient number, since it is larger than the sum of its proper divisors (24148879).

55400241 is a wasteful number, since it uses less digits than its factorization.

55400241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420535.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 55400241 is about 7443.1338158064. The cubic root of 55400241 is about 381.2155007392.

Adding to 55400241 its reverse (14200455), we get a palindrome (69600696).

The spelling of 55400241 in words is "fifty-five million, four hundred thousand, two hundred forty-one".