1025582889 has 8 divisors (see below), whose sum is σ = 1411555072. Its totient is φ = 661666320.

The previous prime is 1025582879. The next prime is 1025582933. The reversal of 1025582889 is 9882855201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1025582889 - 2¹⁵ = 1025550121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025582839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5513794 + ... + 5513979.

It is an arithmetic number, because the mean of its divisors is an integer number (176444384).

Almost surely, 2^1025582889 is an apocalyptic number.

It is an amenable number.

1025582889 is a deficient number, since it is larger than the sum of its proper divisors (385972183).

1025582889 is a wasteful number, since it uses less digits than its factorization.

1025582889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11027807.

The product of its (nonzero) digits is 460800, while the sum is 48.

The square root of 1025582889 is about 32024.7230901377. The cubic root of 1025582889 is about 1008.4559254510.

The spelling of 1025582889 in words is "one billion, twenty-five million, five hundred eighty-two thousand, eight hundred eighty-nine".