97725216493 has 4 divisors (see below), whose sum is σ = 102868648960. Its totient is φ = 92581784028.

The previous prime is 97725216473. The next prime is 97725216497. The reversal of 97725216493 is 39461252779.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97725216493 - 2¹⁷ = 97725085421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97725216497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2571716205 + ... + 2571716242.

It is an arithmetic number, because the mean of its divisors is an integer number (25717162240).

Almost surely, 2^97725216493 is an apocalyptic number.

It is an amenable number.

97725216493 is a deficient number, since it is larger than the sum of its proper divisors (5143432467).

97725216493 is a wasteful number, since it uses less digits than its factorization.

97725216493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143432466.

The product of its digits is 5715360, while the sum is 55.

The spelling of 97725216493 in words is "ninety-seven billion, seven hundred twenty-five million, two hundred sixteen thousand, four hundred ninety-three".