531552647 has 8 divisors (see below), whose sum is σ = 539979552. Its totient is φ = 523152000.

The previous prime is 531552613. The next prime is 531552661. The reversal of 531552647 is 746255135.

It is a happy number.

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 531552647 - 2²⁴ = 514775431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531552647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531552247) 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 in 7 ways as a sum of consecutive naturals, for example, 36443 + ... + 48899.

It is an arithmetic number, because the mean of its divisors is an integer number (67497444).

Almost surely, 2^531552647 is an apocalyptic number.

531552647 is a deficient number, since it is larger than the sum of its proper divisors (8426905).

531552647 is a wasteful number, since it uses less digits than its factorization.

531552647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13129.

The product of its digits is 126000, while the sum is 38.

The square root of 531552647 is about 23055.4255436763. The cubic root of 531552647 is about 810.0567185808.

The spelling of 531552647 in words is "five hundred thirty-one million, five hundred fifty-two thousand, six hundred forty-seven".