52320870 has 256 divisors, whose sum is σ = 176947200. Its totient is φ = 10730880.

The previous prime is 52320869. The next prime is 52320893. The reversal of 52320870 is 7802325.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1113187 + ... + 1113233.

It is an arithmetic number, because the mean of its divisors is an integer number (691200).

Almost surely, 2^52320870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52320870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88473600).

52320870 is an abundant number, since it is smaller than the sum of its proper divisors (124626330).

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

52320870 is a wasteful number, since it uses less digits than its factorization.

52320870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 52320870 is about 7233.3166666475. The cubic root of 52320870 is about 374.0172668780.

The spelling of 52320870 in words is "fifty-two million, three hundred twenty thousand, eight hundred seventy".