4045625 has 10 divisors (see below), whose sum is σ = 5056194. Its totient is φ = 3236000.

The previous prime is 4045603. The next prime is 4045633. The reversal of 4045625 is 5265404.

It can be written as a sum of positive squares in 5 ways, for example, as 2274064 + 1771561 = 1508^2 + 1331^2 .

It is not a de Polignac number, because 4045625 - 2⁸ = 4045369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4045594 and 4045603.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2612 + ... + 3861.

Almost surely, 2^4045625 is an apocalyptic number.

It is an amenable number.

4045625 is a deficient number, since it is larger than the sum of its proper divisors (1010569).

4045625 is an frugal number, since it uses more digits than its factorization.

4045625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493 (or 6478 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4045625 is about 2011.3739085511. The cubic root of 4045625 is about 159.3413680155.

The spelling of 4045625 in words is "four million, forty-five thousand, six hundred twenty-five".