52740636 has 48 divisors (see below), whose sum is σ = 133476000. Its totient is φ = 16111872.

The previous prime is 52740629. The next prime is 52740673. The reversal of 52740636 is 63604725.

It is a junction number, because it is equal to n+sod(n) for n = 52740597 and 52740606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22110 + ... + 24378.

It is an arithmetic number, because the mean of its divisors is an integer number (2780750).

Almost surely, 2^52740636 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 52740636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66738000).

52740636 is an abundant number, since it is smaller than the sum of its proper divisors (80735364).

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

52740636 is a wasteful number, since it uses less digits than its factorization.

52740636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438 (or 2436 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 52740636 is about 7262.2748502105. The cubic root of 52740636 is about 375.0148403016.

The spelling of 52740636 in words is "fifty-two million, seven hundred forty thousand, six hundred thirty-six".