21301054025 has 24 divisors (see below), whose sum is σ = 27535404288. Its totient is φ = 16327800000.

The previous prime is 21301054003. The next prime is 21301054037. The reversal of 21301054025 is 52045010312.

It is not a de Polignac number, because 21301054025 - 2⁸ = 21301053769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57791 + ... + 214340.

It is an arithmetic number, because the mean of its divisors is an integer number (1147308512).

Almost surely, 2^21301054025 is an apocalyptic number.

21301054025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21301054025 is a deficient number, since it is larger than the sum of its proper divisors (6234350263).

21301054025 is a wasteful number, since it uses less digits than its factorization.

21301054025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272273 (or 272268 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 21301054025 its reverse (52045010312), we get a palindrome (73346064337).

The spelling of 21301054025 in words is "twenty-one billion, three hundred one million, fifty-four thousand, twenty-five".