51011055097 has 2 divisors, whose sum is σ = 51011055098. Its totient is φ = 51011055096.

The previous prime is 51011055047. The next prime is 51011055133. The reversal of 51011055097 is 79055011015.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44462361321 + 6548693776 = 210861^2 + 80924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51011055097 is a prime.

It is not a weakly prime, because it can be changed into another prime (51011055047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25505527548 + 25505527549.

It is an arithmetic number, because the mean of its divisors is an integer number (25505527549).

Almost surely, 2^51011055097 is an apocalyptic number.

It is an amenable number.

51011055097 is a deficient number, since it is larger than the sum of its proper divisors (1).

51011055097 is an equidigital number, since it uses as much as digits as its factorization.

51011055097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7875, while the sum is 34.

The spelling of 51011055097 in words is "fifty-one billion, eleven million, fifty-five thousand, ninety-seven".