97844607225 has 18 divisors (see below), whose sum is σ = 175250563566. Its totient is φ = 52183790400.

The previous prime is 97844607163. The next prime is 97844607247. The reversal of 97844607225 is 52270644879.

97844607225 is a `hidden beast` number, since 9 + 7 + 8 + 4 + 4 + 607 + 2 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1827049536 + 96017557689 = 42744^2 + 309867^2 .

It is not a de Polignac number, because 97844607225 - 2¹⁴ = 97844590841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 217432236 + ... + 217432685.

Almost surely, 2^97844607225 is an apocalyptic number.

It is an amenable number.

97844607225 is a deficient number, since it is larger than the sum of its proper divisors (77405956341).

97844607225 is a wasteful number, since it uses less digits than its factorization.

97844607225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434864937 (or 434864929 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 97844607225 in words is "ninety-seven billion, eight hundred forty-four million, six hundred seven thousand, two hundred twenty-five".