54521011 has 4 divisors (see below), whose sum is σ = 54617400. Its totient is φ = 54424624.

The previous prime is 54521009. The next prime is 54521029. The reversal of 54521011 is 11012545.

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

It is a cyclic number.

It is not a de Polignac number, because 54521011 - 2¹ = 54521009 is a prime.

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 54521011.

It is not an unprimeable number, because it can be changed into a prime (54521041) 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, 47341 + ... + 48478.

It is an arithmetic number, because the mean of its divisors is an integer number (13654350).

Almost surely, 2^54521011 is an apocalyptic number.

54521011 is a deficient number, since it is larger than the sum of its proper divisors (96389).

54521011 is an equidigital number, since it uses as much as digits as its factorization.

54521011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96388.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 54521011 is about 7383.8344374722. The cubic root of 54521011 is about 379.1880423860.

Adding to 54521011 its reverse (11012545), we get a palindrome (65533556).

The spelling of 54521011 in words is "fifty-four million, five hundred twenty-one thousand, eleven".