51263574451 has 2 divisors, whose sum is σ = 51263574452. Its totient is φ = 51263574450.

The previous prime is 51263574433. The next prime is 51263574539. The reversal of 51263574451 is 15447536215.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51263574451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51263574398 and 51263574407.

It is not a weakly prime, because it can be changed into another prime (51263574431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25631787225 + 25631787226.

It is an arithmetic number, because the mean of its divisors is an integer number (25631787226).

Almost surely, 2^51263574451 is an apocalyptic number.

51263574451 is a deficient number, since it is larger than the sum of its proper divisors (1).

51263574451 is an equidigital number, since it uses as much as digits as its factorization.

51263574451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 43.

The spelling of 51263574451 in words is "fifty-one billion, two hundred sixty-three million, five hundred seventy-four thousand, four hundred fifty-one".