54121353222215 has 4 divisors (see below), whose sum is σ = 64945623866664. Its totient is φ = 43297082577768.

The previous prime is 54121353222197. The next prime is 54121353222229. The reversal of 54121353222215 is 51222235312145.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54121353222215 - 2⁶ = 54121353222151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5412135322217 + ... + 5412135322226.

It is an arithmetic number, because the mean of its divisors is an integer number (16236405966666).

Almost surely, 2^{54121353222215} is an apocalyptic number.

54121353222215 is a deficient number, since it is larger than the sum of its proper divisors (10824270644449).

54121353222215 is a wasteful number, since it uses less digits than its factorization.

54121353222215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10824270644448.

The product of its digits is 144000, while the sum is 38.

The spelling of 54121353222215 in words is "fifty-four trillion, one hundred twenty-one billion, three hundred fifty-three million, two hundred twenty-two thousand, two hundred fifteen".