531622673250 has 128 divisors (see below), whose sum is σ = 1335266000640. Its totient is φ = 140877273600.

The previous prime is 531622673213. The next prime is 531622673273. The reversal of 531622673250 is 52376226135.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 166808157 + ... + 166811343.

It is an arithmetic number, because the mean of its divisors is an integer number (10431765630).

Almost surely, 2^531622673250 is an apocalyptic number.

531622673250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 531622673250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667633000320).

531622673250 is an abundant number, since it is smaller than the sum of its proper divisors (803643327390).

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

531622673250 is a wasteful number, since it uses less digits than its factorization.

531622673250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4533 (or 4523 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 42.

Adding to 531622673250 its reverse (52376226135), we get a palindrome (583998899385).

The spelling of 531622673250 in words is "five hundred thirty-one billion, six hundred twenty-two million, six hundred seventy-three thousand, two hundred fifty".