30553121776997 has 2 divisors, whose sum is σ = 30553121776998. Its totient is φ = 30553121776996.

The previous prime is 30553121776943. The next prime is 30553121777021. The reversal of 30553121776997 is 79967712135503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15895204160641 + 14657917616356 = 3986879^2 + 3828566^2 .

It is a cyclic number.

It is not a de Polignac number, because 30553121776997 - 2¹⁶ = 30553121711461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30553121773997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15276560888498 + 15276560888499.

It is an arithmetic number, because the mean of its divisors is an integer number (15276560888499).

Almost surely, 2^{30553121776997} is an apocalyptic number.

It is an amenable number.

30553121776997 is a deficient number, since it is larger than the sum of its proper divisors (1).

30553121776997 is an equidigital number, since it uses as much as digits as its factorization.

30553121776997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75014100, while the sum is 65.

The spelling of 30553121776997 in words is "thirty trillion, five hundred fifty-three billion, one hundred twenty-one million, seven hundred seventy-six thousand, nine hundred ninety-seven".