52203420 has 96 divisors (see below), whose sum is σ = 163464000. Its totient is φ = 13830912.

The previous prime is 52203409. The next prime is 52203421. The reversal of 52203420 is 2430225.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 52203393 and 52203402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52203421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149406 + ... + 149754.

It is an arithmetic number, because the mean of its divisors is an integer number (1702750).

Almost surely, 2^52203420 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 52203420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81732000).

52203420 is an abundant number, since it is smaller than the sum of its proper divisors (111260580).

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

52203420 is a wasteful number, since it uses less digits than its factorization.

52203420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 52203420 is about 7225.1934230164. The cubic root of 52203420 is about 373.7371922845.

Adding to 52203420 its reverse (2430225), we get a palindrome (54633645).

The spelling of 52203420 in words is "fifty-two million, two hundred three thousand, four hundred twenty".