52247420 has 24 divisors (see below), whose sum is σ = 109985904. Its totient is φ = 20848256.

The previous prime is 52247417. The next prime is 52247449. The reversal of 52247420 is 2474225.

It is a self number, because there is not a number n which added to its sum of digits gives 52247420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5912 + ... + 11808.

It is an arithmetic number, because the mean of its divisors is an integer number (4582746).

Almost surely, 2^52247420 is an apocalyptic number.

It is an amenable number.

52247420 is an abundant number, since it is smaller than the sum of its proper divisors (57738484).

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

52247420 is a wasteful number, since it uses less digits than its factorization.

52247420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349 (or 6347 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 52247420 is about 7228.2376828657. The cubic root of 52247420 is about 373.8421650910.

The spelling of 52247420 in words is "fifty-two million, two hundred forty-seven thousand, four hundred twenty".