54223979529 has 4 divisors (see below), whose sum is σ = 72298639376. Its totient is φ = 36149319684.

The previous prime is 54223979507. The next prime is 54223979531. The reversal of 54223979529 is 92597932245.

It is a happy number.

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 not a de Polignac number, because 54223979529 - 2¹² = 54223975433 is a prime.

It is a super-2 number, since 2×54223979529² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54223979539) 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, 9037329919 + ... + 9037329924.

It is an arithmetic number, because the mean of its divisors is an integer number (18074659844).

Almost surely, 2^54223979529 is an apocalyptic number.

It is an amenable number.

54223979529 is a deficient number, since it is larger than the sum of its proper divisors (18074659847).

54223979529 is a wasteful number, since it uses less digits than its factorization.

54223979529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18074659846.

The product of its digits is 12247200, while the sum is 57.

The spelling of 54223979529 in words is "fifty-four billion, two hundred twenty-three million, nine hundred seventy-nine thousand, five hundred twenty-nine".