531200520097 has 8 divisors (see below), whose sum is σ = 572072866344. Its totient is φ = 490329712128.

The previous prime is 531200520079. The next prime is 531200520107. The reversal of 531200520097 is 790025002135.

It can be written as a sum of positive squares in 4 ways, for example, as 17707891041 + 513492629056 = 133071^2 + 716584^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531200520097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531200020097) 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, 390513 + ... + 1102225.

It is an arithmetic number, because the mean of its divisors is an integer number (71509108293).

Almost surely, 2^531200520097 is an apocalyptic number.

It is an amenable number.

531200520097 is a deficient number, since it is larger than the sum of its proper divisors (40872346247).

531200520097 is a wasteful number, since it uses less digits than its factorization.

531200520097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769139.

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 531200520097 in words is "five hundred thirty-one billion, two hundred million, five hundred twenty thousand, ninety-seven".