54211538 has 16 divisors (see below), whose sum is σ = 87194880. Its totient is φ = 25187136.

The previous prime is 54211537. The next prime is 54211543. The reversal of 54211538 is 83511245.

It is a self number, because there is not a number n which added to its sum of digits gives 54211538.

It is not an unprimeable number, because it can be changed into a prime (54211537) 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, 7406 + ... + 12777.

It is an arithmetic number, because the mean of its divisors is an integer number (5449680).

Almost surely, 2^54211538 is an apocalyptic number.

54211538 is a deficient number, since it is larger than the sum of its proper divisors (32983342).

54211538 is a wasteful number, since it uses less digits than its factorization.

54211538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20281.

The product of its digits is 4800, while the sum is 29.

The square root of 54211538 is about 7362.8484976944. The cubic root of 54211538 is about 378.4692296236.

The spelling of 54211538 in words is "fifty-four million, two hundred eleven thousand, five hundred thirty-eight".