53365240563 has 16 divisors (see below), whose sum is σ = 75434044416. Its totient is φ = 33498666720.

The previous prime is 53365240547. The next prime is 53365240631. The reversal of 53365240563 is 36504256335.

It is not a de Polignac number, because 53365240563 - 2⁴ = 53365240547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53365247563) 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, 7750881 + ... + 7757762.

It is an arithmetic number, because the mean of its divisors is an integer number (4714627776).

Almost surely, 2^53365240563 is an apocalyptic number.

53365240563 is a deficient number, since it is larger than the sum of its proper divisors (22068803853).

53365240563 is a wasteful number, since it uses less digits than its factorization.

53365240563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15508714.

The product of its (nonzero) digits is 972000, while the sum is 42.

Adding to 53365240563 its reverse (36504256335), we get a palindrome (89869496898).

The spelling of 53365240563 in words is "fifty-three billion, three hundred sixty-five million, two hundred forty thousand, five hundred sixty-three".