10421008025 has 12 divisors (see below), whose sum is σ = 13196988672. Its totient is φ = 8159426640.

The previous prime is 10421008009. The next prime is 10421008043. The reversal of 10421008025 is 52080012401.

It is not a de Polignac number, because 10421008025 - 2⁴ = 10421008009 is a prime.

It is a super-2 number, since 2×10421008025² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 4433297 + ... + 4435646.

It is an arithmetic number, because the mean of its divisors is an integer number (1099749056).

Almost surely, 2^10421008025 is an apocalyptic number.

It is an amenable number.

10421008025 is a deficient number, since it is larger than the sum of its proper divisors (2775980647).

10421008025 is an equidigital number, since it uses as much as digits as its factorization.

10421008025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8869000 (or 8868995 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The spelling of 10421008025 in words is "ten billion, four hundred twenty-one million, eight thousand, twenty-five".