97550114581 has 2 divisors, whose sum is σ = 97550114582. Its totient is φ = 97550114580.

The previous prime is 97550114579. The next prime is 97550114593. The reversal of 97550114581 is 18541105579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93397472100 + 4152642481 = 305610^2 + 64441^2 .

It is a cyclic number.

It is not a de Polignac number, because 97550114581 - 2¹ = 97550114579 is a prime.

It is a super-2 number, since 2×97550114581² (a number of 23 digits) contains 22 as substring.

Together with 97550114579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97550114531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48775057290 + 48775057291.

It is an arithmetic number, because the mean of its divisors is an integer number (48775057291).

Almost surely, 2^97550114581 is an apocalyptic number.

It is an amenable number.

97550114581 is a deficient number, since it is larger than the sum of its proper divisors (1).

97550114581 is an equidigital number, since it uses as much as digits as its factorization.

97550114581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 46.

The spelling of 97550114581 in words is "ninety-seven billion, five hundred fifty million, one hundred fourteen thousand, five hundred eighty-one".