53177321009 has 2 divisors, whose sum is σ = 53177321010. Its totient is φ = 53177321008.

The previous prime is 53177320997. The next prime is 53177321027. The reversal of 53177321009 is 90012377135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44392383025 + 8784937984 = 210695^2 + 93728^2 .

It is a cyclic number.

It is not a de Polignac number, because 53177321009 - 2⁸ = 53177320753 is a prime.

It is not a weakly prime, because it can be changed into another prime (53177321059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26588660504 + 26588660505.

It is an arithmetic number, because the mean of its divisors is an integer number (26588660505).

Almost surely, 2^53177321009 is an apocalyptic number.

It is an amenable number.

53177321009 is a deficient number, since it is larger than the sum of its proper divisors (1).

53177321009 is an equidigital number, since it uses as much as digits as its factorization.

53177321009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 38.

The spelling of 53177321009 in words is "fifty-three billion, one hundred seventy-seven million, three hundred twenty-one thousand, nine".