125564561058250 has 64 divisors (see below), whose sum is σ = 238586694746400. Its totient is φ = 49473375436800.

The previous prime is 125564561058239. The next prime is 125564561058319. The reversal of 125564561058250 is 52850165465521.

It can be written as a sum of positive squares in 16 ways, for example, as 6907787423289 + 118656773634961 = 2628267^2 + 10892969^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125564561058191 and 125564561058200.

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, 9560746 + ... + 18507754.

Almost surely, 2^{125564561058250} is an apocalyptic number.

125564561058250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125564561058250 is a deficient number, since it is larger than the sum of its proper divisors (113022133688150).

125564561058250 is an equidigital number, since it uses as much as digits as its factorization.

125564561058250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8947868 (or 8947858 counting only the distinct ones).

The product of its (nonzero) digits is 14400000, while the sum is 55.

The spelling of 125564561058250 in words is "one hundred twenty-five trillion, five hundred sixty-four billion, five hundred sixty-one million, fifty-eight thousand, two hundred fifty".