1025587 has 4 divisors (see below), whose sum is σ = 1047456. Its totient is φ = 1003720.

The previous prime is 1025579. The next prime is 1025611. The reversal of 1025587 is 7855201.

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

It is a cyclic number.

It is not a de Polignac number, because 1025587 - 2³ = 1025579 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1025537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10864 + ... + 10957.

It is an arithmetic number, because the mean of its divisors is an integer number (261864).

2^1025587 is an apocalyptic number.

1025587 is a deficient number, since it is larger than the sum of its proper divisors (21869).

1025587 is an equidigital number, since it uses as much as digits as its factorization.

1025587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21868.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 1025587 is about 1012.7126937093. The cubic root of 1025587 is about 100.8457272898.

The spelling of 1025587 in words is "one million, twenty-five thousand, five hundred eighty-seven".