531250369 has 8 divisors (see below), whose sum is σ = 572395712. Its totient is φ = 490145040.

The previous prime is 531250361. The next prime is 531250387. The reversal of 531250369 is 963052135.

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 531250369 - 2³ = 531250361 is a prime.

It is a super-2 number, since 2×531250369² = 564453909125272322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531250361) 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, 21202 + ... + 38884.

It is an arithmetic number, because the mean of its divisors is an integer number (71549464).

Almost surely, 2^531250369 is an apocalyptic number.

It is an amenable number.

531250369 is a deficient number, since it is larger than the sum of its proper divisors (41145343).

531250369 is a wasteful number, since it uses less digits than its factorization.

531250369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20007.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 531250369 is about 23048.8691479647. The cubic root of 531250369 is about 809.9031378357.

The spelling of 531250369 in words is "five hundred thirty-one million, two hundred fifty thousand, three hundred sixty-nine".