1020543425 has 24 divisors (see below), whose sum is σ = 1391434752. Its totient is φ = 736344000.

The previous prime is 1020543413. The next prime is 1020543449. The reversal of 1020543425 is 5243450201.

It is a happy number.

It is not a de Polignac number, because 1020543425 - 2⁸ = 1020543169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020543394 and 1020543403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20315 + ... + 49535.

It is an arithmetic number, because the mean of its divisors is an integer number (57976448).

Almost surely, 2^1020543425 is an apocalyptic number.

It is an amenable number.

1020543425 is a deficient number, since it is larger than the sum of its proper divisors (370891327).

1020543425 is a wasteful number, since it uses less digits than its factorization.

1020543425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29369 (or 29364 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1020543425 is about 31945.9453608748. The cubic root of 1020543425 is about 1006.8014438179.

Adding to 1020543425 its reverse (5243450201), we get a palindrome (6263993626).

It can be divided in two parts, 1020 and 543425, that added together give a palindrome (544445).

The spelling of 1020543425 in words is "one billion, twenty million, five hundred forty-three thousand, four hundred twenty-five".