125423215250 has 16 divisors (see below), whose sum is σ = 234792259416. Its totient is φ = 50169286000.

The previous prime is 125423215249. The next prime is 125423215261. The reversal of 125423215250 is 52512324521.

It can be written as a sum of positive squares in 4 ways, for example, as 69367444129 + 56055771121 = 263377^2 + 236761^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250846181 + ... + 250846680.

Almost surely, 2^125423215250 is an apocalyptic number.

125423215250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125423215250 is a deficient number, since it is larger than the sum of its proper divisors (109369044166).

125423215250 is an equidigital number, since it uses as much as digits as its factorization.

125423215250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501692878 (or 501692868 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 125423215250 its reverse (52512324521), we get a palindrome (177935539771).

The spelling of 125423215250 in words is "one hundred twenty-five billion, four hundred twenty-three million, two hundred fifteen thousand, two hundred fifty".