21410205004525 has 24 divisors (see below), whose sum is σ = 28363055595680. Its totient is φ = 15984492384960.

The previous prime is 21410205004457. The next prime is 21410205004543. The reversal of 21410205004525 is 52540050201412.

It is not a de Polignac number, because 21410205004525 - 2³⁵ = 21375845266157 is a prime.

It is a congruent number.

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, 336342174 + ... + 336405823.

Almost surely, 2^{21410205004525} is an apocalyptic number.

21410205004525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21410205004525 is a deficient number, since it is larger than the sum of its proper divisors (6952850591155).

21410205004525 is a wasteful number, since it uses less digits than its factorization.

21410205004525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672748093 (or 672748088 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 21410205004525 its reverse (52540050201412), we get a palindrome (73950255205937).

The spelling of 21410205004525 in words is "twenty-one trillion, four hundred ten billion, two hundred five million, four thousand, five hundred twenty-five".