531424250 has 64 divisors (see below), whose sum is σ = 1203890688. Its totient is φ = 171475200.

The previous prime is 531424219. The next prime is 531424259. The reversal of 531424250 is 52424135.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (531424259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20819 + ... + 38681.

It is an arithmetic number, because the mean of its divisors is an integer number (18810792).

Almost surely, 2^531424250 is an apocalyptic number.

531424250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

531424250 is an abundant number, since it is smaller than the sum of its proper divisors (672466438).

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

531424250 is a wasteful number, since it uses less digits than its factorization.

531424250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17904 (or 17894 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 531424250 is about 23052.6408465494. The cubic root of 531424250 is about 809.9914900290.

Adding to 531424250 its reverse (52424135), we get a palindrome (583848385).

The spelling of 531424250 in words is "five hundred thirty-one million, four hundred twenty-four thousand, two hundred fifty".