51151002051 has 8 divisors (see below), whose sum is σ = 68202763024. Its totient is φ = 34099954560.

The previous prime is 51151002047. The next prime is 51151002073. The reversal of 51151002051 is 15020015115.

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

It is not a de Polignac number, because 51151002051 - 2² = 51151002047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51151002011) 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, 20631 + ... + 320511.

It is an arithmetic number, because the mean of its divisors is an integer number (8525345378).

Almost surely, 2^51151002051 is an apocalyptic number.

51151002051 is a deficient number, since it is larger than the sum of its proper divisors (17051760973).

51151002051 is a wasteful number, since it uses less digits than its factorization.

51151002051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356741.

The product of its (nonzero) digits is 250, while the sum is 21.

Adding to 51151002051 its reverse (15020015115), we get a palindrome (66171017166).

The spelling of 51151002051 in words is "fifty-one billion, one hundred fifty-one million, two thousand, fifty-one".