97557599 has 2 divisors, whose sum is σ = 97557600. Its totient is φ = 97557598.

The previous prime is 97557557. The next prime is 97557613. The reversal of 97557599 is 99575579.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97557599 - 2¹⁶ = 97492063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97557199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48778799 + 48778800.

It is an arithmetic number, because the mean of its divisors is an integer number (48778800).

Almost surely, 2^97557599 is an apocalyptic number.

97557599 is a deficient number, since it is larger than the sum of its proper divisors (1).

97557599 is an equidigital number, since it uses as much as digits as its factorization.

97557599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4465125, while the sum is 56.

The square root of 97557599 is about 9877.1250371755. The cubic root of 97557599 is about 460.3488201723.

The spelling of 97557599 in words is "ninety-seven million, five hundred fifty-seven thousand, five hundred ninety-nine".