51350332551 has 16 divisors (see below), whose sum is σ = 78336770304. Its totient is φ = 29309805504.

The previous prime is 51350332543. The next prime is 51350332559. The reversal of 51350332551 is 15523305315.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51350332543) and next prime (51350332559).

It is not a de Polignac number, because 51350332551 - 2³ = 51350332543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51350332559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366086 + ... + 1403171.

It is an arithmetic number, because the mean of its divisors is an integer number (4896048144).

Almost surely, 2^51350332551 is an apocalyptic number.

51350332551 is a deficient number, since it is larger than the sum of its proper divisors (26986437753).

51350332551 is a wasteful number, since it uses less digits than its factorization.

51350332551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770150.

The product of its (nonzero) digits is 33750, while the sum is 33.

Adding to 51350332551 its reverse (15523305315), we get a palindrome (66873637866).

The spelling of 51350332551 in words is "fifty-one billion, three hundred fifty million, three hundred thirty-two thousand, five hundred fifty-one".