21484583555501 has 48 divisors (see below), whose sum is σ = 24273088366464. Its totient is φ = 18990702720000.

The previous prime is 21484583555471. The next prime is 21484583555537. The reversal of 21484583555501 is 10555538548412.

It is not a de Polignac number, because 21484583555501 - 2⁶ = 21484583555437 is a prime.

It is a super-2 number, since 2×21484583555501² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21484583555581) 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, 2600090696 + ... + 2600098958.

It is an arithmetic number, because the mean of its divisors is an integer number (505689340968).

Almost surely, 2^{21484583555501} is an apocalyptic number.

It is an amenable number.

21484583555501 is a deficient number, since it is larger than the sum of its proper divisors (2788504810963).

21484583555501 is a wasteful number, since it uses less digits than its factorization.

21484583555501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10034 (or 10023 counting only the distinct ones).

The product of its (nonzero) digits is 19200000, while the sum is 56.

The spelling of 21484583555501 in words is "twenty-one trillion, four hundred eighty-four billion, five hundred eighty-three million, five hundred fifty-five thousand, five hundred one".