125493802251 has 8 divisors (see below), whose sum is σ = 167326847040. Its totient is φ = 83661646152.

The previous prime is 125493802219. The next prime is 125493802309. The reversal of 125493802251 is 152208394521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125493802251 - 2⁵ = 125493802219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125493802351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251740 + ... + 560678.

It is an arithmetic number, because the mean of its divisors is an integer number (20915855880).

Almost surely, 2^125493802251 is an apocalyptic number.

125493802251 is a deficient number, since it is larger than the sum of its proper divisors (41833044789).

125493802251 is a wasteful number, since it uses less digits than its factorization.

125493802251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444345.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 125493802251 in words is "one hundred twenty-five billion, four hundred ninety-three million, eight hundred two thousand, two hundred fifty-one".