2573905 has 8 divisors (see below), whose sum is σ = 3172392. Its totient is φ = 2003328.

The previous prime is 2573891. The next prime is 2573927. The reversal of 2573905 is 5093752.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 876096 + 1697809 = 936^2 + 1303^2 .

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

It is not a de Polignac number, because 2573905 - 2⁷ = 2573777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6772 + ... + 7141.

It is an arithmetic number, because the mean of its divisors is an integer number (396549).

2^2573905 is an apocalyptic number.

It is an amenable number.

2573905 is a deficient number, since it is larger than the sum of its proper divisors (598487).

2573905 is a wasteful number, since it uses less digits than its factorization.

2573905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13955.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 2573905 is about 1604.3394279266. The cubic root of 2573905 is about 137.0453079759.

The spelling of 2573905 in words is "two million, five hundred seventy-three thousand, nine hundred five".