54252220 has 48 divisors (see below), whose sum is σ = 130838400. Its totient is φ = 18688320.

The previous prime is 54252199. The next prime is 54252227. The reversal of 54252220 is 2225245.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 54252191 and 54252200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54252227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2310 + ... + 10669.

It is an arithmetic number, because the mean of its divisors is an integer number (2725800).

Almost surely, 2^54252220 is an apocalyptic number.

It is an amenable number.

54252220 is an abundant number, since it is smaller than the sum of its proper divisors (76586180).

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

54252220 is a wasteful number, since it uses less digits than its factorization.

54252220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13018 (or 13016 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 54252220 is about 7365.6106332062. The cubic root of 54252220 is about 378.5638775893.

Adding to 54252220 its reverse (2225245), we get a palindrome (56477465).

The spelling of 54252220 in words is "fifty-four million, two hundred fifty-two thousand, two hundred twenty".