2605458073 has 4 divisors (see below), whose sum is σ = 2606906548. Its totient is φ = 2604009600.

The previous prime is 2605458067. The next prime is 2605458091. The reversal of 2605458073 is 3708545062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 503418969 + 2102039104 = 22437^2 + 45848^2 .

It is a cyclic number.

It is not a de Polignac number, because 2605458073 - 2¹³ = 2605449881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2605458013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721536 + ... + 725137.

It is an arithmetic number, because the mean of its divisors is an integer number (651726637).

Almost surely, 2^2605458073 is an apocalyptic number.

It is an amenable number.

2605458073 is a deficient number, since it is larger than the sum of its proper divisors (1448475).

2605458073 is a wasteful number, since it uses less digits than its factorization.

2605458073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448474.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 2605458073 is about 51043.6878859669. The cubic root of 2605458073 is about 1376.0304030445.

The spelling of 2605458073 in words is "two billion, six hundred five million, four hundred fifty-eight thousand, seventy-three".