21470741244525 has 48 divisors (see below), whose sum is σ = 36723582699008. Its totient is φ = 11057423616000.

The previous prime is 21470741244503. The next prime is 21470741244527. The reversal of 21470741244525 is 52544214707412.

It is a happy number.

It is not a de Polignac number, because 21470741244525 - 2⁸ = 21470741244269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21470741244527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9041116 + ... + 11166165.

Almost surely, 2^{21470741244525} is an apocalyptic number.

21470741244525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21470741244525 is a deficient number, since it is larger than the sum of its proper divisors (15252841454483).

21470741244525 is a wasteful number, since it uses less digits than its factorization.

21470741244525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20207782 (or 20207777 counting only the distinct ones).

The product of its (nonzero) digits is 2508800, while the sum is 48.

The spelling of 21470741244525 in words is "twenty-one trillion, four hundred seventy billion, seven hundred forty-one million, two hundred forty-four thousand, five hundred twenty-five".