2045425 has 6 divisors (see below), whose sum is σ = 2536358. Its totient is φ = 1636320.

The previous prime is 2045377. The next prime is 2045437. The reversal of 2045425 is 5245402.

It can be written as a sum of positive squares in 3 ways, for example, as 6241 + 2039184 = 79^2 + 1428^2 .

It is not a de Polignac number, because 2045425 - 2¹⁵ = 2012657 is a prime.

It is a Duffinian number.

2045425 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2045396 and 2045405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40884 + ... + 40933.

2^2045425 is an apocalyptic number.

2045425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2045425 is a deficient number, since it is larger than the sum of its proper divisors (490933).

2045425 is an equidigital number, since it uses as much as digits as its factorization.

2045425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81827 (or 81822 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2045425 is about 1430.1835546530. The cubic root of 2045425 is about 126.9388384278.

The spelling of 2045425 in words is "two million, forty-five thousand, four hundred twenty-five".