10021143625 has 16 divisors (see below), whose sum is σ = 12556252800. Its totient is φ = 7984950000.

The previous prime is 10021143599. The next prime is 10021143637. The reversal of 10021143625 is 52634112001.

It is a happy number.

It is not a de Polignac number, because 10021143625 - 2⁷ = 10021143497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 10021143625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128325 + ... + 191074.

It is an arithmetic number, because the mean of its divisors is an integer number (784765800).

Almost surely, 2^10021143625 is an apocalyptic number.

It is an amenable number.

10021143625 is a deficient number, since it is larger than the sum of its proper divisors (2535109175).

10021143625 is an equidigital number, since it uses as much as digits as its factorization.

10021143625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319665 (or 319655 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 10021143625 its reverse (52634112001), we get a palindrome (62655255626).

The spelling of 10021143625 in words is "ten billion, twenty-one million, one hundred forty-three thousand, six hundred twenty-five".