21055045532 has 6 divisors (see below), whose sum is σ = 36846329688. Its totient is φ = 10527522764.

The previous prime is 21055045523. The next prime is 21055045553. The reversal of 21055045532 is 23554055012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631880688 + ... + 2631880695.

It is an arithmetic number, because the mean of its divisors is an integer number (6141054948).

Almost surely, 2^21055045532 is an apocalyptic number.

It is an amenable number.

21055045532 is a deficient number, since it is larger than the sum of its proper divisors (15791284156).

21055045532 is a wasteful number, since it uses less digits than its factorization.

21055045532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263761387 (or 5263761385 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 21055045532 in words is "twenty-one billion, fifty-five million, forty-five thousand, five hundred thirty-two".