97511 has 2 divisors, whose sum is σ = 97512. Its totient is φ = 97510.

The previous prime is 97501. The next prime is 97523. The reversal of 97511 is 11579.

It is a weak prime.

It is an emirp because it is prime and its reverse (11579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97511 - 2¹⁰ = 96487 is a prime.

It is a Sophie Germain prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48755 + 48756.

It is an arithmetic number, because the mean of its divisors is an integer number (48756).

2⁹⁷⁵¹¹ is an apocalyptic number.

97511 is a deficient number, since it is larger than the sum of its proper divisors (1).

97511 is an equidigital number, since it uses as much as digits as its factorization.

97511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 315, while the sum is 23.

The square root of 97511 is about 312.2675135201. The cubic root of 97511 is about 46.0275512330.

The spelling of 97511 in words is "ninety-seven thousand, five hundred eleven".