54215244 has 108 divisors (see below), whose sum is σ = 151753784. Its totient is φ = 16920576.

The previous prime is 54215221. The next prime is 54215321. The reversal of 54215244 is 44251245.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 280812 + ... + 281004.

Almost surely, 2^54215244 is an apocalyptic number.

54215244 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54215244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75876892).

54215244 is an abundant number, since it is smaller than the sum of its proper divisors (97538540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54215244 is a wasteful number, since it uses less digits than its factorization.

54215244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 215 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 54215244 is about 7363.1001622958. The cubic root of 54215244 is about 378.4778537102.

Adding to 54215244 its reverse (44251245), we get a palindrome (98466489).

The spelling of 54215244 in words is "fifty-four million, two hundred fifteen thousand, two hundred forty-four".