251630052113 has 8 divisors (see below), whose sum is σ = 276189596256. Its totient is φ = 227351188800.

The previous prime is 251630052071. The next prime is 251630052119. The reversal of 251630052113 is 311250036152.

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

It is a cyclic number.

It is not a de Polignac number, because 251630052113 - 2³⁰ = 250556310289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251630052119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70168328 + ... + 70171913.

It is an arithmetic number, because the mean of its divisors is an integer number (34523699532).

Almost surely, 2^251630052113 is an apocalyptic number.

It is an amenable number.

251630052113 is a deficient number, since it is larger than the sum of its proper divisors (24559544143).

251630052113 is a wasteful number, since it uses less digits than its factorization.

251630052113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140340415.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 251630052113 its reverse (311250036152), we get a palindrome (562880088265).

The spelling of 251630052113 in words is "two hundred fifty-one billion, six hundred thirty million, fifty-two thousand, one hundred thirteen".