5151012251 has 12 divisors (see below), whose sum is σ = 6536721240. Its totient is φ = 4013775360.

The previous prime is 5151012247. The next prime is 5151012253. The reversal of 5151012251 is 1522101515.

It is not a de Polignac number, because 5151012251 - 2² = 5151012247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5151012253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4777766 + ... + 4778843.

It is an arithmetic number, because the mean of its divisors is an integer number (544726770).

Almost surely, 2^5151012251 is an apocalyptic number.

5151012251 is a deficient number, since it is larger than the sum of its proper divisors (1385708989).

5151012251 is a wasteful number, since it uses less digits than its factorization.

5151012251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9556634 (or 9556627 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 5151012251 is about 71770.5528124174. The cubic root of 5151012251 is about 1727.0206386139.

Adding to 5151012251 its reverse (1522101515), we get a palindrome (6673113766).

The spelling of 5151012251 in words is "five billion, one hundred fifty-one million, twelve thousand, two hundred fifty-one".