531025240 has 32 divisors (see below), whose sum is σ = 1195663680. Its totient is φ = 212257792.

The previous prime is 531025237. The next prime is 531025249. The reversal of 531025240 is 42520135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531025249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63969 + ... + 71791.

It is an arithmetic number, because the mean of its divisors is an integer number (37364490).

Almost surely, 2^531025240 is an apocalyptic number.

It is an amenable number.

531025240 is an abundant number, since it is smaller than the sum of its proper divisors (664638440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531025240 is a wasteful number, since it uses less digits than its factorization.

531025240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531 (or 9527 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 531025240 is about 23043.9848984502. The cubic root of 531025240 is about 809.7887169298.

Adding to 531025240 its reverse (42520135), we get a palindrome (573545375).

The spelling of 531025240 in words is "five hundred thirty-one million, twenty-five thousand, two hundred forty".