1045000025 has 6 divisors (see below), whose sum is σ = 1295800062. Its totient is φ = 836000000.

The previous prime is 1044999983. The next prime is 1045000039. The reversal of 1045000025 is 5200005401.

It can be written as a sum of positive squares in 3 ways, for example, as 1968409 + 1043031616 = 1403^2 + 32296^2 .

It is not a de Polignac number, because 1045000025 - 2²² = 1040805721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1044999967 and 1045000012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20899976 + ... + 20900025.

It is an arithmetic number, because the mean of its divisors is an integer number (215966677).

Almost surely, 2^1045000025 is an apocalyptic number.

It is an amenable number.

1045000025 is a deficient number, since it is larger than the sum of its proper divisors (250800037).

1045000025 is an equidigital number, since it uses as much as digits as its factorization.

1045000025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41800011 (or 41800006 counting only the distinct ones).

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

The square root of 1045000025 is about 32326.4601371694. The cubic root of 1045000025 is about 1014.7804697230.

Adding to 1045000025 its reverse (5200005401), we get a palindrome (6245005426).

The spelling of 1045000025 in words is "one billion, forty-five million, twenty-five", and thus it is an aban number and an uban number.