52712040 has 64 divisors (see below), whose sum is σ = 158630400. Its totient is φ = 14012672.

The previous prime is 52712029. The next prime is 52712041. The reversal of 52712040 is 4021725.

It is a junction number, because it is equal to n+sod(n) for n = 52711998 and 52712016.

It is not an unprimeable number, because it can be changed into a prime (52712041) 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, 60649 + ... + 61511.

It is an arithmetic number, because the mean of its divisors is an integer number (2478600).

Almost surely, 2^52712040 is an apocalyptic number.

It is an amenable number.

52712040 is an abundant number, since it is smaller than the sum of its proper divisors (105918360).

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

52712040 is a wasteful number, since it uses less digits than its factorization.

52712040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 52712040 is about 7260.3057786845. The cubic root of 52712040 is about 374.9470503017.

Adding to 52712040 its reverse (4021725), we get a palindrome (56733765).

The spelling of 52712040 in words is "fifty-two million, seven hundred twelve thousand, forty".