52420028 has 12 divisors (see below), whose sum is σ = 91788480. Its totient is φ = 26194752.

The previous prime is 52420019. The next prime is 52420037. The reversal of 52420028 is 82002425.

It is an interprime number because it is at equal distance from previous prime (52420019) and next prime (52420037).

It is a junction number, because it is equal to n+sod(n) for n = 52419985 and 52420012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7925 + ... + 12947.

It is an arithmetic number, because the mean of its divisors is an integer number (7649040).

Almost surely, 2^52420028 is an apocalyptic number.

It is an amenable number.

52420028 is a deficient number, since it is larger than the sum of its proper divisors (39368452).

52420028 is a wasteful number, since it uses less digits than its factorization.

52420028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7636 (or 7634 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 52420028 is about 7240.1676776163. The cubic root of 52420028 is about 374.2533957238.

The spelling of 52420028 in words is "fifty-two million, four hundred twenty thousand, twenty-eight".