21443514535055 has 8 divisors (see below), whose sum is σ = 25739319925152. Its totient is φ = 17150076639328.

The previous prime is 21443514535043. The next prime is 21443514535067. The reversal of 21443514535055 is 55053541534412.

It is an interprime number because it is at equal distance from previous prime (21443514535043) and next prime (21443514535067).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21443514535055 - 2¹⁰ = 21443514534031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591853664 + ... + 591889893.

It is an arithmetic number, because the mean of its divisors is an integer number (3217414990644).

Almost surely, 2^{21443514535055} is an apocalyptic number.

21443514535055 is a deficient number, since it is larger than the sum of its proper divisors (4295805390097).

21443514535055 is a wasteful number, since it uses less digits than its factorization.

21443514535055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183747185.

The product of its (nonzero) digits is 3600000, while the sum is 47.

The spelling of 21443514535055 in words is "twenty-one trillion, four hundred forty-three billion, five hundred fourteen million, five hundred thirty-five thousand, fifty-five".