97609525477 has 2 divisors, whose sum is σ = 97609525478. Its totient is φ = 97609525476.

The previous prime is 97609525441. The next prime is 97609525513. The reversal of 97609525477 is 77452590679.

It is a balanced prime because it is at equal distance from previous prime (97609525441) and next prime (97609525513).

It can be written as a sum of positive squares in only one way, i.e., 68057852641 + 29551672836 = 260879^2 + 171906^2 .

It is a cyclic number.

It is not a de Polignac number, because 97609525477 - 2¹⁵ = 97609492709 is a prime.

It is a super-2 number, since 2×97609525477² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97609525777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48804762738 + 48804762739.

It is an arithmetic number, because the mean of its divisors is an integer number (48804762739).

Almost surely, 2^97609525477 is an apocalyptic number.

It is an amenable number.

97609525477 is a deficient number, since it is larger than the sum of its proper divisors (1).

97609525477 is an equidigital number, since it uses as much as digits as its factorization.

97609525477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33339600, while the sum is 61.

The spelling of 97609525477 in words is "ninety-seven billion, six hundred nine million, five hundred twenty-five thousand, four hundred seventy-seven".