51150550051 has 2 divisors, whose sum is σ = 51150550052. Its totient is φ = 51150550050.

The previous prime is 51150550049. The next prime is 51150550069. The reversal of 51150550051 is 15005505115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51150550051 - 2¹ = 51150550049 is a prime.

It is a super-2 number, since 2×51150550051² (a number of 22 digits) contains 22 as substring.

Together with 51150550049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51150551051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25575275025 + 25575275026.

It is an arithmetic number, because the mean of its divisors is an integer number (25575275026).

Almost surely, 2^51150550051 is an apocalyptic number.

51150550051 is a deficient number, since it is larger than the sum of its proper divisors (1).

51150550051 is an equidigital number, since it uses as much as digits as its factorization.

51150550051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 51150550051 in words is "fifty-one billion, one hundred fifty million, five hundred fifty thousand, fifty-one".