531354155047 has 2 divisors, whose sum is σ = 531354155048. Its totient is φ = 531354155046.

The previous prime is 531354155027. The next prime is 531354155051. The reversal of 531354155047 is 740551453135.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531354155047 is a prime.

It is a super-2 number, since 2×531354155047² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531354154994 and 531354155012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531354155027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265677077523 + 265677077524.

It is an arithmetic number, because the mean of its divisors is an integer number (265677077524).

Almost surely, 2^531354155047 is an apocalyptic number.

531354155047 is a deficient number, since it is larger than the sum of its proper divisors (1).

531354155047 is an equidigital number, since it uses as much as digits as its factorization.

531354155047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 531354155047 in words is "five hundred thirty-one billion, three hundred fifty-four million, one hundred fifty-five thousand, forty-seven".