52783720 has 32 divisors (see below), whose sum is σ = 129561120. Its totient is φ = 19193920.

The previous prime is 52783693. The next prime is 52783789. The reversal of 52783720 is 2738725.

It is a super-2 number, since 2×52783720² = 5572242194076800, which contains 22 as substring.

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, 59542 + ... + 60421.

It is an arithmetic number, because the mean of its divisors is an integer number (4048785).

Almost surely, 2^52783720 is an apocalyptic number.

It is an amenable number.

52783720 is an abundant number, since it is smaller than the sum of its proper divisors (76777400).

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

52783720 is a wasteful number, since it uses less digits than its factorization.

52783720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119985 (or 119981 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 52783720 is about 7265.2405328385. The cubic root of 52783720 is about 375.1169294621.

It can be divided in two parts, 5278 and 3720, that added together give a palindrome (8998).

The spelling of 52783720 in words is "fifty-two million, seven hundred eighty-three thousand, seven hundred twenty".