54319521071 has 4 divisors (see below), whose sum is σ = 54320781000. Its totient is φ = 54318261144.

The previous prime is 54319521037. The next prime is 54319521119. The reversal of 54319521071 is 17012591345.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54319521071 is a prime.

It is a super-2 number, since 2×54319521071² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54319521271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562916 + ... + 652313.

It is an arithmetic number, because the mean of its divisors is an integer number (13580195250).

Almost surely, 2^54319521071 is an apocalyptic number.

54319521071 is a deficient number, since it is larger than the sum of its proper divisors (1259929).

54319521071 is a wasteful number, since it uses less digits than its factorization.

54319521071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259928.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 54319521071 in words is "fifty-four billion, three hundred nineteen million, five hundred twenty-one thousand, seventy-one".