1625425 has 12 divisors (see below), whose sum is σ = 2043520. Its totient is φ = 1282320.

The previous prime is 1625419. The next prime is 1625453. The reversal of 1625425 is 5245261.

It is not a de Polignac number, because 1625425 - 2³ = 1625417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1625425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1564 + ... + 2386.

2^1625425 is an apocalyptic number.

It is an amenable number.

1625425 is a deficient number, since it is larger than the sum of its proper divisors (418095).

1625425 is an equidigital number, since it uses as much as digits as its factorization.

1625425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 907 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 1625425 is about 1274.9215662150. The cubic root of 1625425 is about 117.5769829002.

The spelling of 1625425 in words is "one million, six hundred twenty-five thousand, four hundred twenty-five".