251150412513 has 64 divisors (see below), whose sum is σ = 449781276672. Its totient is φ = 120386407680.

The previous prime is 251150412493. The next prime is 251150412563. The reversal of 251150412513 is 315214051152.

It is not a de Polignac number, because 251150412513 - 2⁶ = 251150412449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (251150412563) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8775495 + ... + 8804067.

It is an arithmetic number, because the mean of its divisors is an integer number (7027832448).

Almost surely, 2^251150412513 is an apocalyptic number.

It is an amenable number.

251150412513 is a deficient number, since it is larger than the sum of its proper divisors (198630864159).

251150412513 is a wasteful number, since it uses less digits than its factorization.

251150412513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31534.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 251150412513 its reverse (315214051152), we get a palindrome (566364463665).

The spelling of 251150412513 in words is "two hundred fifty-one billion, one hundred fifty million, four hundred twelve thousand, five hundred thirteen".