97255537 has 2 divisors, whose sum is σ = 97255538. Its totient is φ = 97255536.

The previous prime is 97255507. The next prime is 97255603. The reversal of 97255537 is 73555279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62869041 + 34386496 = 7929^2 + 5864^2 .

It is a cyclic number.

It is not a de Polignac number, because 97255537 - 2⁷ = 97255409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97255493 and 97255502.

It is not a weakly prime, because it can be changed into another prime (97255507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48627768 + 48627769.

It is an arithmetic number, because the mean of its divisors is an integer number (48627769).

Almost surely, 2^97255537 is an apocalyptic number.

It is an amenable number.

97255537 is a deficient number, since it is larger than the sum of its proper divisors (1).

97255537 is an equidigital number, since it uses as much as digits as its factorization.

97255537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 330750, while the sum is 43.

The square root of 97255537 is about 9861.8221947062. The cubic root of 97255537 is about 459.8732117489.

The spelling of 97255537 in words is "ninety-seven million, two hundred fifty-five thousand, five hundred thirty-seven".