125556802900 has 18 divisors (see below), whose sum is σ = 272458262510. Its totient is φ = 50222721120.

The previous prime is 125556802897. The next prime is 125556802909. The reversal of 125556802900 is 9208655521.

It can be written as a sum of positive squares in 3 ways, for example, as 4221620676 + 121335182224 = 64974^2 + 348332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125556802909) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 627783915 + ... + 627784114.

Almost surely, 2^125556802900 is an apocalyptic number.

125556802900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125556802900 is an abundant number, since it is smaller than the sum of its proper divisors (146901459610).

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

125556802900 is a wasteful number, since it uses less digits than its factorization.

125556802900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255568043 (or 1255568036 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 125556802900 in words is "one hundred twenty-five billion, five hundred fifty-six million, eight hundred two thousand, nine hundred".