505545200431 has 2 divisors, whose sum is σ = 505545200432. Its totient is φ = 505545200430.

The previous prime is 505545200401. The next prime is 505545200441. The reversal of 505545200431 is 134002545505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505545200431 - 2⁵ = 505545200399 is a prime.

It is a super-2 number, since 2×505545200431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505545200401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252772600215 + 252772600216.

It is an arithmetic number, because the mean of its divisors is an integer number (252772600216).

Almost surely, 2^505545200431 is an apocalyptic number.

505545200431 is a deficient number, since it is larger than the sum of its proper divisors (1).

505545200431 is an equidigital number, since it uses as much as digits as its factorization.

505545200431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 505545200431 its reverse (134002545505), we get a palindrome (639547745936).

The spelling of 505545200431 in words is "five hundred five billion, five hundred forty-five million, two hundred thousand, four hundred thirty-one".