52623740565 has 48 divisors (see below), whose sum is σ = 99671210496. Its totient is φ = 25472361600.

The previous prime is 52623740563. The next prime is 52623740579. The reversal of 52623740565 is 56504732625.

52623740565 is a `hidden beast` number, since 5 + 2 + 6 + 237 + 405 + 6 + 5 = 666.

It is not a de Polignac number, because 52623740565 - 2¹ = 52623740563 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 52623740565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52623740563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212895 + ... + 388035.

It is an arithmetic number, because the mean of its divisors is an integer number (2076483552).

Almost surely, 2^52623740565 is an apocalyptic number.

52623740565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52623740565 is a deficient number, since it is larger than the sum of its proper divisors (47047469931).

52623740565 is a wasteful number, since it uses less digits than its factorization.

52623740565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175770 (or 175767 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 45.

The spelling of 52623740565 in words is "fifty-two billion, six hundred twenty-three million, seven hundred forty thousand, five hundred sixty-five".