1535425 has 6 divisors (see below), whose sum is σ = 1903958. Its totient is φ = 1228320.

The previous prime is 1535393. The next prime is 1535441. The reversal of 1535425 is 5245351.

It can be written as a sum of positive squares in 3 ways, for example, as 37249 + 1498176 = 193^2 + 1224^2 .

It is not a de Polignac number, because 1535425 - 2⁵ = 1535393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 61417 = 1535425 / (1 + 5 + 3 + 5 + 4 + 2 + 5).

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 1535425.

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, 30684 + ... + 30733.

2^1535425 is an apocalyptic number.

It is an amenable number.

1535425 is a deficient number, since it is larger than the sum of its proper divisors (368533).

1535425 is an equidigital number, since it uses as much as digits as its factorization.

1535425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61427 (or 61422 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 1535425 is about 1239.1226735073. The cubic root of 1535425 is about 115.3655663710.

The spelling of 1535425 in words is "one million, five hundred thirty-five thousand, four hundred twenty-five".