52783620 has 72 divisors (see below), whose sum is σ = 154592256. Its totient is φ = 13455552.

The previous prime is 52783573. The next prime is 52783631. The reversal of 52783620 is 2638725.

It is a super-2 number, since 2×52783620² = 5572221080608800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30909 + ... + 32571.

Almost surely, 2^52783620 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 52783620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77296128).

52783620 is an abundant number, since it is smaller than the sum of its proper divisors (101808636).

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

52783620 is a wasteful number, since it uses less digits than its factorization.

52783620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1696 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 52783620 is about 7265.2336507507. The cubic root of 52783620 is about 375.1166925727.

The spelling of 52783620 in words is "fifty-two million, seven hundred eighty-three thousand, six hundred twenty".