21250432106562 has 16 divisors (see below), whose sum is σ = 42657693973632. Its totient is φ = 7057339075440.

The previous prime is 21250432106521. The next prime is 21250432106569. The reversal of 21250432106562 is 26560123405212.

It is a self number, because there is not a number n which added to its sum of digits gives 21250432106562.

It is not an unprimeable number, because it can be changed into a prime (21250432106569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6534571593 + ... + 6534574844.

It is an arithmetic number, because the mean of its divisors is an integer number (2666105873352).

Almost surely, 2^{21250432106562} is an apocalyptic number.

21250432106562 is an abundant number, since it is smaller than the sum of its proper divisors (21407261867070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21250432106562 is a wasteful number, since it uses less digits than its factorization.

21250432106562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13069146713.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 21250432106562 in words is "twenty-one trillion, two hundred fifty billion, four hundred thirty-two million, one hundred six thousand, five hundred sixty-two".