1042789025 has 6 divisors (see below), whose sum is σ = 1293058422. Its totient is φ = 834231200.

The previous prime is 1042789003. The next prime is 1042789057. The reversal of 1042789025 is 5209872401.

It can be written as a sum of positive squares in 3 ways, for example, as 14432401 + 1028356624 = 3799^2 + 32068^2 .

It is not a de Polignac number, because 1042789025 - 2¹⁶ = 1042723489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042789025.

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, 20855756 + ... + 20855805.

It is an arithmetic number, because the mean of its divisors is an integer number (215509737).

Almost surely, 2^1042789025 is an apocalyptic number.

It is an amenable number.

1042789025 is a deficient number, since it is larger than the sum of its proper divisors (250269397).

1042789025 is an equidigital number, since it uses as much as digits as its factorization.

1042789025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41711571 (or 41711566 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1042789025 is about 32292.2440378491. The cubic root of 1042789025 is about 1014.0642771195.

The spelling of 1042789025 in words is "one billion, forty-two million, seven hundred eighty-nine thousand, twenty-five".