97574538233 has 2 divisors, whose sum is σ = 97574538234. Its totient is φ = 97574538232.

The previous prime is 97574538203. The next prime is 97574538377. The reversal of 97574538233 is 33283547579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66418052089 + 31156486144 = 257717^2 + 176512^2 .

It is a cyclic number.

It is not a de Polignac number, because 97574538233 - 2²² = 97570343929 is a prime.

It is a super-2 number, since 2×97574538233² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (97574538203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48787269116 + 48787269117.

It is an arithmetic number, because the mean of its divisors is an integer number (48787269117).

Almost surely, 2^97574538233 is an apocalyptic number.

It is an amenable number.

97574538233 is a deficient number, since it is larger than the sum of its proper divisors (1).

97574538233 is an equidigital number, since it uses as much as digits as its factorization.

97574538233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19051200, while the sum is 56.

The spelling of 97574538233 in words is "ninety-seven billion, five hundred seventy-four million, five hundred thirty-eight thousand, two hundred thirty-three".