1005120425 has 48 divisors (see below), whose sum is σ = 1370001600. Its totient is φ = 728582400.

The previous prime is 1005120377. The next prime is 1005120469. The reversal of 1005120425 is 5240215001.

It is not a de Polignac number, because 1005120425 - 2⁸ = 1005120169 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1005120397 and 1005120406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1804247 + ... + 1804803.

It is an arithmetic number, because the mean of its divisors is an integer number (28541700).

Almost surely, 2^1005120425 is an apocalyptic number.

It is an amenable number.

1005120425 is a deficient number, since it is larger than the sum of its proper divisors (364881175).

1005120425 is a wasteful number, since it uses less digits than its factorization.

1005120425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 741 counting only the distinct ones).

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

The square root of 1005120425 is about 31703.6342553973. The cubic root of 1005120425 is about 1001.7039033976.

Adding to 1005120425 its reverse (5240215001), we get a palindrome (6245335426).

The spelling of 1005120425 in words is "one billion, five million, one hundred twenty thousand, four hundred twenty-five".