125682752450 has 24 divisors (see below), whose sum is σ = 233847176052. Its totient is φ = 50256486720.

The previous prime is 125682752449. The next prime is 125682752519. The reversal of 125682752450 is 54257286521.

It can be written as a sum of positive squares in 6 ways, for example, as 98697133921 + 26985618529 = 314161^2 + 164273^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125682752395 and 125682752404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261989 + ... + 565688.

Almost surely, 2^125682752450 is an apocalyptic number.

125682752450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125682752450 is a deficient number, since it is larger than the sum of its proper divisors (108164423602).

125682752450 is a wasteful number, since it uses less digits than its factorization.

125682752450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830726 (or 830721 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 125682752450 in words is "one hundred twenty-five billion, six hundred eighty-two million, seven hundred fifty-two thousand, four hundred fifty".