125828449250 has 64 divisors (see below), whose sum is σ = 269283246336. Its totient is φ = 43128000000.

The previous prime is 125828449249. The next prime is 125828449273. The reversal of 125828449250 is 52944828521.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6992765 + ... + 7010735.

It is an arithmetic number, because the mean of its divisors is an integer number (4207550724).

Almost surely, 2^125828449250 is an apocalyptic number.

125828449250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125828449250 is an abundant number, since it is smaller than the sum of its proper divisors (143454797086).

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

125828449250 is a wasteful number, since it uses less digits than its factorization.

125828449250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21996 (or 21986 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 50.

The spelling of 125828449250 in words is "one hundred twenty-five billion, eight hundred twenty-eight million, four hundred forty-nine thousand, two hundred fifty".