55121412154 has 8 divisors (see below), whose sum is σ = 82809913248. Its totient is φ = 27518107740.

The previous prime is 55121412113. The next prime is 55121412173. The reversal of 55121412154 is 45121412155.

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

It is a super-2 number, since 2×55121412154² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21297552 + ... + 21300139.

It is an arithmetic number, because the mean of its divisors is an integer number (10351239156).

Almost surely, 2^55121412154 is an apocalyptic number.

55121412154 is a deficient number, since it is larger than the sum of its proper divisors (27688501094).

55121412154 is a wasteful number, since it uses less digits than its factorization.

55121412154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42598340.

The product of its digits is 8000, while the sum is 31.

Subtracting from 55121412154 its reverse (45121412155), we obtain a palindrome (9999999999).

The spelling of 55121412154 in words is "fifty-five billion, one hundred twenty-one million, four hundred twelve thousand, one hundred fifty-four".