54856336416021 has 48 divisors (see below), whose sum is σ = 95963986460160. Its totient is φ = 29527380368640.

The previous prime is 54856336415983. The next prime is 54856336416031. The reversal of 54856336416021 is 12061463365845.

54856336416021 is a `hidden beast` number, since 5 + 4 + 8 + 563 + 3 + 64 + 16 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 54856336416021 - 2²¹ = 54856334318869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54856336416031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 366088045 + ... + 366237858.

It is an arithmetic number, because the mean of its divisors is an integer number (1999249717920).

Almost surely, 2^{54856336416021} is an apocalyptic number.

It is an amenable number.

54856336416021 is a deficient number, since it is larger than the sum of its proper divisors (41107650044139).

54856336416021 is a wasteful number, since it uses less digits than its factorization.

54856336416021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732325986 (or 732325983 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 54856336416021 in words is "fifty-four trillion, eight hundred fifty-six billion, three hundred thirty-six million, four hundred sixteen thousand, twenty-one".