1905025 has 12 divisors (see below), whose sum is σ = 2380924. Its totient is φ = 1512000.

The previous prime is 1905023. The next prime is 1905031. The reversal of 1905025 is 5205091.

It can be written as a sum of positive squares in 6 ways, for example, as 1056784 + 848241 = 1028^2 + 921^2 .

It is not a de Polignac number, because 1905025 - 2¹ = 1905023 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1904987 and 1905005.

It is not an unprimeable number, because it can be changed into a prime (1905023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4315 + ... + 4735.

2^1905025 is an apocalyptic number.

It is an amenable number.

1905025 is a deficient number, since it is larger than the sum of its proper divisors (475899).

1905025 is a wasteful number, since it uses less digits than its factorization.

1905025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1905025 is about 1380.2264306990. The cubic root of 1905025 is about 123.9653258929.

The spelling of 1905025 in words is "one million, nine hundred five thousand, twenty-five".