251006125045 has 16 divisors (see below), whose sum is σ = 326189324160. Its totient is φ = 184322839104.

The previous prime is 251006125039. The next prime is 251006125057. The reversal of 251006125045 is 540521600152.

251006125045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 251006125045 - 2¹⁹ = 251005600757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 251006124998 and 251006125016.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10775049 + ... + 10798318.

It is an arithmetic number, because the mean of its divisors is an integer number (20386832760).

Almost surely, 2^251006125045 is an apocalyptic number.

It is an amenable number.

251006125045 is a deficient number, since it is larger than the sum of its proper divisors (75183199115).

251006125045 is a wasteful number, since it uses less digits than its factorization.

251006125045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21573564.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 251006125045 its reverse (540521600152), we get a palindrome (791527725197).

The spelling of 251006125045 in words is "two hundred fifty-one billion, six million, one hundred twenty-five thousand, forty-five".