2657425 has 6 divisors (see below), whose sum is σ = 3295238. Its totient is φ = 2125920.

The previous prime is 2657407. The next prime is 2657429. The reversal of 2657425 is 5247562.

It can be written as a sum of positive squares in 3 ways, for example, as 261121 + 2396304 = 511^2 + 1548^2 .

It is not a de Polignac number, because 2657425 - 2⁵ = 2657393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2657429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53124 + ... + 53173.

2^2657425 is an apocalyptic number.

2657425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2657425 is a deficient number, since it is larger than the sum of its proper divisors (637813).

2657425 is a wasteful number, since it uses less digits than its factorization.

2657425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106307 (or 106302 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 2657425 is about 1630.1610349901. The cubic root of 2657425 is about 138.5118741096.

Subtracting from 2657425 its product of digits (16800), we obtain a square (2640625 = 1625²).

The spelling of 2657425 in words is "two million, six hundred fifty-seven thousand, four hundred twenty-five".