54052220 has 24 divisors (see below), whose sum is σ = 117172608. Its totient is φ = 20923200.

The previous prime is 54052217. The next prime is 54052223. The reversal of 54052220 is 2225045.

It is an interprime number because it is at equal distance from previous prime (54052217) and next prime (54052223).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 54052192 and 54052201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54052223) 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, 42971 + ... + 44210.

It is an arithmetic number, because the mean of its divisors is an integer number (4882192).

Almost surely, 2^54052220 is an apocalyptic number.

It is an amenable number.

54052220 is an abundant number, since it is smaller than the sum of its proper divisors (63120388).

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

54052220 is a wasteful number, since it uses less digits than its factorization.

54052220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87221 (or 87219 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 54052220 is about 7352.0214907194. The cubic root of 54052220 is about 378.0981147472.

Adding to 54052220 its reverse (2225045), we get a palindrome (56277265).

The spelling of 54052220 in words is "fifty-four million, fifty-two thousand, two hundred twenty".