97655513 has 2 divisors, whose sum is σ = 97655514. Its totient is φ = 97655512.

The previous prime is 97655489. The next prime is 97655527. The reversal of 97655513 is 31555679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54582544 + 43072969 = 7388^2 + 6563^2 .

It is a cyclic number.

It is not a de Polignac number, because 97655513 - 2¹⁸ = 97393369 is a prime.

It is not a weakly prime, because it can be changed into another prime (97655713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48827756 + 48827757.

It is an arithmetic number, because the mean of its divisors is an integer number (48827757).

Almost surely, 2^97655513 is an apocalyptic number.

It is an amenable number.

97655513 is a deficient number, since it is larger than the sum of its proper divisors (1).

97655513 is an equidigital number, since it uses as much as digits as its factorization.

97655513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141750, while the sum is 41.

The square root of 97655513 is about 9882.0803983777. The cubic root of 97655513 is about 460.5027788711.

The spelling of 97655513 in words is "ninety-seven million, six hundred fifty-five thousand, five hundred thirteen".