52744540 has 48 divisors (see below), whose sum is σ = 119532672. Its totient is φ = 19475456.

The previous prime is 52744529. The next prime is 52744541. The reversal of 52744540 is 4544725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52744541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16557 + ... + 19483.

It is an arithmetic number, because the mean of its divisors is an integer number (2490264).

Almost surely, 2^52744540 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 52744540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59766336).

52744540 is an abundant number, since it is smaller than the sum of its proper divisors (66788132).

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

52744540 is a wasteful number, since it uses less digits than its factorization.

52744540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006 (or 3004 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 52744540 is about 7262.5436315385. The cubic root of 52744540 is about 375.0240932668.

The spelling of 52744540 in words is "fifty-two million, seven hundred forty-four thousand, five hundred forty".