1000521425 has 12 divisors (see below), whose sum is σ = 1255596720. Its totient is φ = 790771920.

The previous prime is 1000521419. The next prime is 1000521443. The reversal of 1000521425 is 5241250001.

It is not a de Polignac number, because 1000521425 - 2¹⁴ = 1000505041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000521397 and 1000521406.

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, 239015 + ... + 243164.

It is an arithmetic number, because the mean of its divisors is an integer number (104633060).

Almost surely, 2^1000521425 is an apocalyptic number.

It is an amenable number.

1000521425 is a deficient number, since it is larger than the sum of its proper divisors (255075295).

1000521425 is an equidigital number, since it uses as much as digits as its factorization.

1000521425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482272 (or 482267 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1000521425 is about 31631.0199803927. The cubic root of 1000521425 is about 1000.1737781327.

Adding to 1000521425 its reverse (5241250001), we get a palindrome (6241771426).

The spelling of 1000521425 in words is "one billion, five hundred twenty-one thousand, four hundred twenty-five".