63505250531 has 2 divisors, whose sum is σ = 63505250532. Its totient is φ = 63505250530.

The previous prime is 63505250491. The next prime is 63505250563. The reversal of 63505250531 is 13505250536.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63505250531 is a prime.

It is a super-2 number, since 2×63505250531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63505250491 and 63505250500.

It is not a weakly prime, because it can be changed into another prime (63505250131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31752625265 + 31752625266.

It is an arithmetic number, because the mean of its divisors is an integer number (31752625266).

Almost surely, 2^63505250531 is an apocalyptic number.

63505250531 is a deficient number, since it is larger than the sum of its proper divisors (1).

63505250531 is an equidigital number, since it uses as much as digits as its factorization.

63505250531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 63505250531 in words is "sixty-three billion, five hundred five million, two hundred fifty thousand, five hundred thirty-one".