54221580 has 144 divisors (see below), whose sum is σ = 196245504. Its totient is φ = 11848320.

The previous prime is 54221579. The next prime is 54221593. The reversal of 54221580 is 8512245.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28045 + ... + 29915.

It is an arithmetic number, because the mean of its divisors is an integer number (1362816).

Almost surely, 2^54221580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54221580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98122752).

54221580 is an abundant number, since it is smaller than the sum of its proper divisors (142023924).

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

54221580 is a wasteful number, since it uses less digits than its factorization.

54221580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 54221580 is about 7363.5304032780. The cubic root of 54221580 is about 378.4925970560.

It can be divided in two parts, 542 and 21580, that added together give a palindrome (22122).

The spelling of 54221580 in words is "fifty-four million, two hundred twenty-one thousand, five hundred eighty".