51151002043 has 4 divisors (see below), whose sum is σ = 51185356120. Its totient is φ = 51116647968.

The previous prime is 51151002017. The next prime is 51151002047. The reversal of 51151002043 is 34020015115.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34020015115 = 5 ⋅6804003023.

It is a cyclic number.

It is not a de Polignac number, because 51151002043 - 2⁵ = 51151002011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51151002047) 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, 17174805 + ... + 17177782.

It is an arithmetic number, because the mean of its divisors is an integer number (12796339030).

Almost surely, 2^51151002043 is an apocalyptic number.

51151002043 is a deficient number, since it is larger than the sum of its proper divisors (34354077).

51151002043 is a wasteful number, since it uses less digits than its factorization.

51151002043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34354076.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 51151002043 its reverse (34020015115), we get a palindrome (85171017158).

The spelling of 51151002043 in words is "fifty-one billion, one hundred fifty-one million, two thousand, forty-three".