51241183057 has 2 divisors, whose sum is σ = 51241183058.
Its totient is φ = 51241183056.
The previous prime is 51241183001. The next prime is 51241183093. The reversal of 51241183057 is 75038114215.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 49818686401 + 1422496656 = 223201^2 + 37716^2
It is a cyclic number.
It is not a de Polignac number, because 51241183057 - 223 = 51232794449 is a prime.
It is not a weakly prime, because it can be changed into another prime (51241183957) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25620591528 + 25620591529.
It is an arithmetic number, because the mean of its divisors is an integer number (25620591529).
Almost surely, 251241183057 is an apocalyptic number.
It is an amenable number.
51241183057 is a deficient number, since it is larger than the sum of its proper divisors (1).
51241183057 is an equidigital number, since it uses as much as digits as its factorization.
51241183057 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 33600, while the sum is 37.
The spelling of 51241183057 in words is "fifty-one billion, two hundred forty-one million, one hundred eighty-three thousand, fifty-seven".