54221305523 has 24 divisors (see below), whose sum is σ = 68506614624. Its totient is φ = 42006032640.

The previous prime is 54221305517. The next prime is 54221305529. The reversal of 54221305523 is 32550312245.

It is an interprime number because it is at equal distance from previous prime (54221305517) and next prime (54221305529).

It is not a de Polignac number, because 54221305523 - 2¹² = 54221301427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54221305523.

It is not an unprimeable number, because it can be changed into a prime (54221305529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38486 + ... + 331547.

It is an arithmetic number, because the mean of its divisors is an integer number (2854442276).

Almost surely, 2^54221305523 is an apocalyptic number.

54221305523 is a deficient number, since it is larger than the sum of its proper divisors (14285309101).

54221305523 is a wasteful number, since it uses less digits than its factorization.

54221305523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370235 (or 370224 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 54221305523 its reverse (32550312245), we get a palindrome (86771617768).

The spelling of 54221305523 in words is "fifty-four billion, two hundred twenty-one million, three hundred five thousand, five hundred twenty-three".