531225838 has 32 divisors (see below), whose sum is σ = 940689792. Its totient is φ = 221810400.

The previous prime is 531225833. The next prime is 531225839. The reversal of 531225838 is 838522135.

It is a junction number, because it is equal to n+sod(n) for n = 531225797 and 531225806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531225833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55945 + ... + 64747.

It is an arithmetic number, because the mean of its divisors is an integer number (29396556).

Almost surely, 2^531225838 is an apocalyptic number.

531225838 is a deficient number, since it is larger than the sum of its proper divisors (409463954).

531225838 is a wasteful number, since it uses less digits than its factorization.

531225838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9040.

The product of its digits is 57600, while the sum is 37.

The square root of 531225838 is about 23048.3369899002. The cubic root of 531225838 is about 809.8906716234.

The spelling of 531225838 in words is "five hundred thirty-one million, two hundred twenty-five thousand, eight hundred thirty-eight".