1610825 has 6 divisors (see below), whose sum is σ = 1997454. Its totient is φ = 1288640.

The previous prime is 1610813. The next prime is 1610837. The reversal of 1610825 is 5280161.

It is an interprime number because it is at equal distance from previous prime (1610813) and next prime (1610837).

It can be written as a sum of positive squares in 3 ways, for example, as 80656 + 1530169 = 284^2 + 1237^2 .

It is not a de Polignac number, because 1610825 - 2⁴ = 1610809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1610825.

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, 32192 + ... + 32241.

It is an arithmetic number, because the mean of its divisors is an integer number (332909).

2^1610825 is an apocalyptic number.

It is an amenable number.

1610825 is a deficient number, since it is larger than the sum of its proper divisors (386629).

1610825 is an equidigital number, since it uses as much as digits as its factorization.

1610825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64443 (or 64438 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1610825 is about 1269.1828079516. The cubic root of 1610825 is about 117.2238876631.

Adding to 1610825 its reverse (5280161), we get a palindrome (6890986).

The spelling of 1610825 in words is "one million, six hundred ten thousand, eight hundred twenty-five".