1425625 has 10 divisors (see below), whose sum is σ = 1782242. Its totient is φ = 1140000.

The previous prime is 1425607. The next prime is 1425629. The reversal of 1425625 is 5265241.

It can be written as a sum of positive squares in 5 ways, for example, as 488601 + 937024 = 699^2 + 968^2 .

It is not a de Polignac number, because 1425625 - 2⁷ = 1425497 is a prime.

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

It is a Duffinian number.

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 1425625.

It is not an unprimeable number, because it can be changed into a prime (1425629) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 516 + ... + 1765.

2^1425625 is an apocalyptic number.

It is an amenable number.

1425625 is a deficient number, since it is larger than the sum of its proper divisors (356617).

1425625 is an frugal number, since it uses more digits than its factorization.

1425625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2286 counting only the distinct ones).

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

The square root of 1425625 is about 1193.9953936260. The cubic root of 1425625 is about 112.5473052087.

Adding to 1425625 its product of digits (2400), we get a square (1428025 = 1195²).

The spelling of 1425625 in words is "one million, four hundred twenty-five thousand, six hundred twenty-five".