51551482323457 has 2 divisors, whose sum is σ = 51551482323458. Its totient is φ = 51551482323456.

The previous prime is 51551482323409. The next prime is 51551482323461. The reversal of 51551482323457 is 75432328415515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48032121331441 + 3519360992016 = 6930521^2 + 1875996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51551482323457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51551482323398 and 51551482323407.

It is not a weakly prime, because it can be changed into another prime (51551482323487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25775741161728 + 25775741161729.

It is an arithmetic number, because the mean of its divisors is an integer number (25775741161729).

Almost surely, 2^{51551482323457} is an apocalyptic number.

It is an amenable number.

51551482323457 is a deficient number, since it is larger than the sum of its proper divisors (1).

51551482323457 is an equidigital number, since it uses as much as digits as its factorization.

51551482323457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160000, while the sum is 55.

The spelling of 51551482323457 in words is "fifty-one trillion, five hundred fifty-one billion, four hundred eighty-two million, three hundred twenty-three thousand, four hundred fifty-seven".