52820620 has 12 divisors (see below), whose sum is σ = 110923344. Its totient is φ = 21128240.

The previous prime is 52820617. The next prime is 52820659. The reversal of 52820620 is 2602825.

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, 1320496 + ... + 1320535.

It is an arithmetic number, because the mean of its divisors is an integer number (9243612).

Almost surely, 2^52820620 is an apocalyptic number.

It is an amenable number.

52820620 is an abundant number, since it is smaller than the sum of its proper divisors (58102724).

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

52820620 is a wasteful number, since it uses less digits than its factorization.

52820620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641040 (or 2641038 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 52820620 is about 7267.7795783857. The cubic root of 52820620 is about 375.2043212466.

The spelling of 52820620 in words is "fifty-two million, eight hundred twenty thousand, six hundred twenty".