54551351121 has 4 divisors (see below), whose sum is σ = 72735134832. Its totient is φ = 36367567412.

The previous prime is 54551351027. The next prime is 54551351123. The reversal of 54551351121 is 12115315545.

It is a happy number.

54551351121 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54551351121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54551351123) 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, 9091891851 + ... + 9091891856.

It is an arithmetic number, because the mean of its divisors is an integer number (18183783708).

Almost surely, 2^54551351121 is an apocalyptic number.

It is an amenable number.

54551351121 is a deficient number, since it is larger than the sum of its proper divisors (18183783711).

54551351121 is a wasteful number, since it uses less digits than its factorization.

54551351121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18183783710.

The product of its digits is 15000, while the sum is 33.

Adding to 54551351121 its reverse (12115315545), we get a palindrome (66666666666).

The spelling of 54551351121 in words is "fifty-four billion, five hundred fifty-one million, three hundred fifty-one thousand, one hundred twenty-one".