51151002151 has 4 divisors (see below), whose sum is σ = 51161376232. Its totient is φ = 51140628072.

The previous prime is 51151002073. The next prime is 51151002173. The reversal of 51151002151 is 15120015115.

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 51151002151 - 2²¹ = 51148904999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51151002251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5179641 + ... + 5189506.

It is an arithmetic number, because the mean of its divisors is an integer number (12790344058).

Almost surely, 2^51151002151 is an apocalyptic number.

51151002151 is a deficient number, since it is larger than the sum of its proper divisors (10374081).

51151002151 is a wasteful number, since it uses less digits than its factorization.

51151002151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10374080.

The product of its (nonzero) digits is 250, while the sum is 22.

Adding to 51151002151 its reverse (15120015115), we get a palindrome (66271017266).

The spelling of 51151002151 in words is "fifty-one billion, one hundred fifty-one million, two thousand, one hundred fifty-one".