51455224577 has 2 divisors, whose sum is σ = 51455224578. Its totient is φ = 51455224576.

The previous prime is 51455224567. The next prime is 51455224619. The reversal of 51455224577 is 77542255415.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50590805776 + 864418801 = 224924^2 + 29401^2 .

It is a cyclic number.

It is not a de Polignac number, because 51455224577 - 2⁸ = 51455224321 is a prime.

It is not a weakly prime, because it can be changed into another prime (51455224567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25727612288 + 25727612289.

It is an arithmetic number, because the mean of its divisors is an integer number (25727612289).

Almost surely, 2^51455224577 is an apocalyptic number.

It is an amenable number.

51455224577 is a deficient number, since it is larger than the sum of its proper divisors (1).

51455224577 is an equidigital number, since it uses as much as digits as its factorization.

51455224577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1960000, while the sum is 47.

The spelling of 51455224577 in words is "fifty-one billion, four hundred fifty-five million, two hundred twenty-four thousand, five hundred seventy-seven".