565250420021431 has 8 divisors (see below), whose sum is σ = 598561311420864. Its totient is φ = 531946291587840.

The previous prime is 565250420021411. The next prime is 565250420021501. The reversal of 565250420021431 is 134120024052565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 565250420021431 - 2⁷ = 565250420021303 is a prime.

It is a super-2 number, since 2×565250420021431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565250420021411) 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, 1690569375 + ... + 1690903696.

It is an arithmetic number, because the mean of its divisors is an integer number (74820163927608).

Almost surely, 2^{565250420021431} is an apocalyptic number.

565250420021431 is a deficient number, since it is larger than the sum of its proper divisors (33310891399433).

565250420021431 is a wasteful number, since it uses less digits than its factorization.

565250420021431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381482921.

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 565250420021431 its reverse (134120024052565), we get a palindrome (699370444073996).

The spelling of 565250420021431 in words is "five hundred sixty-five trillion, two hundred fifty billion, four hundred twenty million, twenty-one thousand, four hundred thirty-one".