1989060025 has 12 divisors (see below), whose sum is σ = 2497657600. Its totient is φ = 1571104080.

The previous prime is 1989059999. The next prime is 1989060041. The reversal of 1989060025 is 5200609891.

It is not a de Polignac number, because 1989060025 - 2²³ = 1980671417 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1989060025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501585 + ... + 505534.

Almost surely, 2^1989060025 is an apocalyptic number.

It is an amenable number.

1989060025 is a deficient number, since it is larger than the sum of its proper divisors (508597575).

1989060025 is a wasteful number, since it uses less digits than its factorization.

1989060025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007208 (or 1007203 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1989060025 is about 44598.8791899527. The cubic root of 1989060025 is about 1257.6195976771.

The spelling of 1989060025 in words is "one billion, nine hundred eighty-nine million, sixty thousand, twenty-five".