55434121 has 8 divisors (see below), whose sum is σ = 55931904. Its totient is φ = 54938880.

The previous prime is 55434101. The next prime is 55434133. The reversal of 55434121 is 12143455.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55434121 - 2²³ = 47045513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55434101) 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, 95785 + ... + 96361.

It is an arithmetic number, because the mean of its divisors is an integer number (6991488).

Almost surely, 2^55434121 is an apocalyptic number.

It is an amenable number.

55434121 is a deficient number, since it is larger than the sum of its proper divisors (497783).

55434121 is a wasteful number, since it uses less digits than its factorization.

55434121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its digits is 2400, while the sum is 25.

The square root of 55434121 is about 7445.4093910275. The cubic root of 55434121 is about 381.2931956432.

Adding to 55434121 its reverse (12143455), we get a palindrome (67577576).

It can be divided in two parts, 55434 and 121, that added together give a palindrome (55555).

The spelling of 55434121 in words is "fifty-five million, four hundred thirty-four thousand, one hundred twenty-one".