51012477601 has 2 divisors, whose sum is σ = 51012477602. Its totient is φ = 51012477600.

The previous prime is 51012477563. The next prime is 51012477629. The reversal of 51012477601 is 10677421015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45379224576 + 5633253025 = 213024^2 + 75055^2 .

It is a cyclic number.

It is not a de Polignac number, because 51012477601 - 2¹⁷ = 51012346529 is a prime.

It is not a weakly prime, because it can be changed into another prime (51012477301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25506238800 + 25506238801.

It is an arithmetic number, because the mean of its divisors is an integer number (25506238801).

Almost surely, 2^51012477601 is an apocalyptic number.

It is an amenable number.

51012477601 is a deficient number, since it is larger than the sum of its proper divisors (1).

51012477601 is an equidigital number, since it uses as much as digits as its factorization.

51012477601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 34.

Adding to 51012477601 its reverse (10677421015), we get a palindrome (61689898616).

The spelling of 51012477601 in words is "fifty-one billion, twelve million, four hundred seventy-seven thousand, six hundred one".