125251360251 has 4 divisors (see below), whose sum is σ = 167001813672. Its totient is φ = 83500906832.

The previous prime is 125251360243. The next prime is 125251360253. The reversal of 125251360251 is 152063152521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125251360251 - 2³ = 125251360243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125251360253) 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 3 ways as a sum of consecutive naturals, for example, 20875226706 + ... + 20875226711.

It is an arithmetic number, because the mean of its divisors is an integer number (41750453418).

Almost surely, 2^125251360251 is an apocalyptic number.

125251360251 is a deficient number, since it is larger than the sum of its proper divisors (41750453421).

125251360251 is an equidigital number, since it uses as much as digits as its factorization.

125251360251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41750453420.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 125251360251 in words is "one hundred twenty-five billion, two hundred fifty-one million, three hundred sixty thousand, two hundred fifty-one".