2905425 has 36 divisors (see below), whose sum is σ = 5359900. Its totient is φ = 1503360.

The previous prime is 2905421. The next prime is 2905433. The reversal of 2905425 is 5245092.

It can be written as a sum of positive squares in 6 ways, for example, as 123201 + 2782224 = 351^2 + 1668^2 .

It is not a de Polignac number, because 2905425 - 2² = 2905421 is a prime.

2905425 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2905421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8151 + ... + 8499.

2^2905425 is an apocalyptic number.

2905425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2905425 is a deficient number, since it is larger than the sum of its proper divisors (2454475).

2905425 is a wasteful number, since it uses less digits than its factorization.

2905425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2905425 is about 1704.5307272091. The cubic root of 2905425 is about 142.6931821282.

The spelling of 2905425 in words is "two million, nine hundred five thousand, four hundred twenty-five".