1025522 has 4 divisors (see below), whose sum is σ = 1538286. Its totient is φ = 512760.

The previous prime is 1025513. The next prime is 1025537. The reversal of 1025522 is 2255201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 958441 + 67081 = 979^2 + 259^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1025522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256379 + ... + 256382.

2^1025522 is an apocalyptic number.

1025522 is a deficient number, since it is larger than the sum of its proper divisors (512764).

1025522 is an equidigital number, since it uses as much as digits as its factorization.

1025522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512763.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1025522 is about 1012.6806011769. The cubic root of 1025522 is about 100.8435967666.

The spelling of 1025522 in words is "one million, twenty-five thousand, five hundred twenty-two".