54263521 has 8 divisors (see below), whose sum is σ = 59681664. Its totient is φ = 49023120.

The previous prime is 54263483. The next prime is 54263527. The reversal of 54263521 is 12536245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54263521 - 2⁷ = 54263393 is a prime.

It is a super-2 number, since 2×54263521² = 5889059422634882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54263521.

It is not an unprimeable number, because it can be changed into a prime (54263527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43795 + ... + 45016.

It is an arithmetic number, because the mean of its divisors is an integer number (7460208).

Almost surely, 2^54263521 is an apocalyptic number.

It is an amenable number.

54263521 is a deficient number, since it is larger than the sum of its proper divisors (5418143).

54263521 is a wasteful number, since it uses less digits than its factorization.

54263521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88871.

The product of its digits is 7200, while the sum is 28.

The square root of 54263521 is about 7366.3777394320. The cubic root of 54263521 is about 378.5901613270.

Adding to 54263521 its reverse (12536245), we get a palindrome (66799766).

The spelling of 54263521 in words is "fifty-four million, two hundred sixty-three thousand, five hundred twenty-one".