1607425 has 12 divisors (see below), whose sum is σ = 2014380. Its totient is φ = 1272320.

The previous prime is 1607407. The next prime is 1607449. The reversal of 1607425 is 5247061.

1607425 = 896² + 897².

It can be written as a sum of positive squares in 6 ways, for example, as 591361 + 1016064 = 769^2 + 1008^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1607425 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 1607425.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2541 + ... + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (167865).

2^1607425 is an apocalyptic number.

1607425 is the 897-th centered square number.

It is an amenable number.

1607425 is a deficient number, since it is larger than the sum of its proper divisors (406955).

1607425 is a wasteful number, since it uses less digits than its factorization.

1607425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1607425 is about 1267.8426558528. The cubic root of 1607425 is about 117.1413539792.

The spelling of 1607425 in words is "one million, six hundred seven thousand, four hundred twenty-five".