1025504 has 24 divisors (see below), whose sum is σ = 2051280. Its totient is φ = 504576.

The previous prime is 1025503. The next prime is 1025509. The reversal of 1025504 is 4055201.

1025504 = T₂₃₇ + T₂₃₈ + ... + T₂₆₈.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117 + ... + 2555.

It is an arithmetic number, because the mean of its divisors is an integer number (85470).

2^1025504 is an apocalyptic number.

It is an amenable number.

1025504 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1025504 is an equidigital number, since it uses as much as digits as its factorization.

1025504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 514 counting only the distinct ones).

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

The square root of 1025504 is about 1012.6717138343. The cubic root of 1025504 is about 100.8430067596.

The spelling of 1025504 in words is "one million, twenty-five thousand, five hundred four".