125531222250 has 256 divisors, whose sum is σ = 367511519232. Its totient is φ = 27941760000.

The previous prime is 125531222237. The next prime is 125531222261. The reversal of 125531222250 is 52222135521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 104521650 + ... + 104522850.

It is an arithmetic number, because the mean of its divisors is an integer number (1435591872).

Almost surely, 2^125531222250 is an apocalyptic number.

125531222250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125531222250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183755759616).

125531222250 is an abundant number, since it is smaller than the sum of its proper divisors (241980296982).

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

125531222250 is a wasteful number, since it uses less digits than its factorization.

125531222250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 125531222250 its reverse (52222135521), we get a palindrome (177753357771).

The spelling of 125531222250 in words is "one hundred twenty-five billion, five hundred thirty-one million, two hundred twenty-two thousand, two hundred fifty".