97773549001 has 2 divisors, whose sum is σ = 97773549002. Its totient is φ = 97773549000.

The previous prime is 97773548993. The next prime is 97773549017. The reversal of 97773549001 is 10094537779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51581223225 + 46192325776 = 227115^2 + 214924^2 .

It is a cyclic number.

It is not a de Polignac number, because 97773549001 - 2³ = 97773548993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97773549001.

It is not a weakly prime, because it can be changed into another prime (97773549701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48886774500 + 48886774501.

It is an arithmetic number, because the mean of its divisors is an integer number (48886774501).

Almost surely, 2^97773549001 is an apocalyptic number.

It is an amenable number.

97773549001 is a deficient number, since it is larger than the sum of its proper divisors (1).

97773549001 is an equidigital number, since it uses as much as digits as its factorization.

97773549001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1666980, while the sum is 52.

The spelling of 97773549001 in words is "ninety-seven billion, seven hundred seventy-three million, five hundred forty-nine thousand, one".