55121341 has 4 divisors (see below), whose sum is σ = 60132384. Its totient is φ = 50110300.

The previous prime is 55121273. The next prime is 55121359. The reversal of 55121341 is 14312155.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55121341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55124341) 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, 2505505 + ... + 2505526.

It is an arithmetic number, because the mean of its divisors is an integer number (15033096).

Almost surely, 2^55121341 is an apocalyptic number.

It is an amenable number.

55121341 is a deficient number, since it is larger than the sum of its proper divisors (5011043).

55121341 is a wasteful number, since it uses less digits than its factorization.

55121341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011042.

The product of its digits is 600, while the sum is 22.

The square root of 55121341 is about 7424.3747884923. The cubic root of 55121341 is about 380.5747097831.

Adding to 55121341 its reverse (14312155), we get a palindrome (69433496).

The spelling of 55121341 in words is "fifty-five million, one hundred twenty-one thousand, three hundred forty-one".