52565740 has 24 divisors (see below), whose sum is σ = 112738752. Its totient is φ = 20578560.

The previous prime is 52565701. The next prime is 52565743. The reversal of 52565740 is 4756525.

It is a junction number, because it is equal to n+sod(n) for n = 52565696 and 52565705.

It is not an unprimeable number, because it can be changed into a prime (52565743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27021 + ... + 28900.

It is an arithmetic number, because the mean of its divisors is an integer number (4697448).

Almost surely, 2^52565740 is an apocalyptic number.

It is an amenable number.

52565740 is an abundant number, since it is smaller than the sum of its proper divisors (60173012).

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

52565740 is a wasteful number, since it uses less digits than its factorization.

52565740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55977 (or 55975 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 52565740 is about 7250.2234448326. The cubic root of 52565740 is about 374.5998457487.

The spelling of 52565740 in words is "fifty-two million, five hundred sixty-five thousand, seven hundred forty".