1005038425 has 6 divisors (see below), whose sum is σ = 1246247678. Its totient is φ = 804030720.

The previous prime is 1005038423. The next prime is 1005038443. The reversal of 1005038425 is 5248305001.

It can be written as a sum of positive squares in 3 ways, for example, as 227074761 + 777963664 = 15069^2 + 27892^2 .

It is not a de Polignac number, because 1005038425 - 2¹ = 1005038423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1005038393 and 1005038402.

It is not an unprimeable number, because it can be changed into a prime (1005038423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20100744 + ... + 20100793.

Almost surely, 2^1005038425 is an apocalyptic number.

It is an amenable number.

1005038425 is a deficient number, since it is larger than the sum of its proper divisors (241209253).

1005038425 is an equidigital number, since it uses as much as digits as its factorization.

1005038425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40201547 (or 40201542 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1005038425 is about 31702.3410018882. The cubic root of 1005038425 is about 1001.6766622326.

The spelling of 1005038425 in words is "one billion, five million, thirty-eight thousand, four hundred twenty-five".