52910820 has 168 divisors, whose sum is σ = 176279040. Its totient is φ = 13296960.

The previous prime is 52910813. The next prime is 52910857. The reversal of 52910820 is 2801925.

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

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 276925 + ... + 277115.

It is an arithmetic number, because the mean of its divisors is an integer number (1049280).

Almost surely, 2^52910820 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 52910820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88139520).

52910820 is an abundant number, since it is smaller than the sum of its proper divisors (123368220).

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

52910820 is a wasteful number, since it uses less digits than its factorization.

52910820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 52910820 is about 7273.9824030582. The cubic root of 52910820 is about 375.4177743993.

The spelling of 52910820 in words is "fifty-two million, nine hundred ten thousand, eight hundred twenty".