52006620 has 24 divisors (see below), whose sum is σ = 145618704. Its totient is φ = 13868416.

The previous prime is 52006613. The next prime is 52006631. The reversal of 52006620 is 2660025.

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, 433329 + ... + 433448.

It is an arithmetic number, because the mean of its divisors is an integer number (6067446).

Almost surely, 2^52006620 is an apocalyptic number.

It is an amenable number.

52006620 is an abundant number, since it is smaller than the sum of its proper divisors (93612084).

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

52006620 is a wasteful number, since it uses less digits than its factorization.

52006620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866789 (or 866787 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 52006620 is about 7211.5615507323. The cubic root of 52006620 is about 373.2669542557.

Adding to 52006620 its reverse (2660025), we get a palindrome (54666645).

The spelling of 52006620 in words is "fifty-two million, six thousand, six hundred twenty".