1006420025 has 48 divisors (see below), whose sum is σ = 1421784000. Its totient is φ = 700565760.

The previous prime is 1006420001. The next prime is 1006420049. The reversal of 1006420025 is 5200246001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1006420001) and next prime (1006420049).

It is not a de Polignac number, because 1006420025 - 2²⁴ = 989642809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1006419979 and 1006420006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2154842 + ... + 2155308.

It is an arithmetic number, because the mean of its divisors is an integer number (29620500).

Almost surely, 2^1006420025 is an apocalyptic number.

It is an amenable number.

1006420025 is a deficient number, since it is larger than the sum of its proper divisors (415363975).

1006420025 is a wasteful number, since it uses less digits than its factorization.

1006420025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1006420025 is about 31724.1237073619. The cubic root of 1006420025 is about 1002.1354449622.

Adding to 1006420025 its reverse (5200246001), we get a palindrome (6206666026).

The spelling of 1006420025 in words is "one billion, six million, four hundred twenty thousand, twenty-five".