2605615097 has 8 divisors (see below), whose sum is σ = 2656085256. Its totient is φ = 2555193472.

The previous prime is 2605615091. The next prime is 2605615127. The reversal of 2605615097 is 7905165062.

It can be written as a sum of positive squares in 4 ways, for example, as 950427241 + 1655187856 = 30829^2 + 40684^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2605615097 - 2¹⁶ = 2605549561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2605615091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107573 + ... + 129549.

It is an arithmetic number, because the mean of its divisors is an integer number (332010657).

Almost surely, 2^2605615097 is an apocalyptic number.

It is an amenable number.

2605615097 is a deficient number, since it is larger than the sum of its proper divisors (50470159).

2605615097 is a wasteful number, since it uses less digits than its factorization.

2605615097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24267.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 2605615097 is about 51045.2259961693. The cubic root of 2605615097 is about 1376.0580457150.

The spelling of 2605615097 in words is "two billion, six hundred five million, six hundred fifteen thousand, ninety-seven".