52503420 has 48 divisors (see below), whose sum is σ = 147601440. Its totient is φ = 13944576.

The previous prime is 52503419. The next prime is 52503421. The reversal of 52503420 is 2430525.

It is an interprime number because it is at equal distance from previous prime (52503419) and next prime (52503421).

It is a super-2 number, since 2×52503420² = 5513218223392800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52503421) 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, 14514 + ... + 17766.

It is an arithmetic number, because the mean of its divisors is an integer number (3075030).

Almost surely, 2^52503420 is an apocalyptic number.

It is an amenable number.

52503420 is an abundant number, since it is smaller than the sum of its proper divisors (95098020).

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

52503420 is a wasteful number, since it uses less digits than its factorization.

52503420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3534 (or 3532 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 52503420 is about 7245.9243716727. The cubic root of 52503420 is about 374.4517499601.

Adding to 52503420 its reverse (2430525), we get a palindrome (54933945).

The spelling of 52503420 in words is "fifty-two million, five hundred three thousand, four hundred twenty".