544215052021 has 4 divisors (see below), whose sum is σ = 544395079872. Its totient is φ = 544035024172.

The previous prime is 544215052009. The next prime is 544215052079. The reversal of 544215052021 is 120250512445.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 544215052021 - 2⁹ = 544215051509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544215052321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90009391 + ... + 90015436.

It is an arithmetic number, because the mean of its divisors is an integer number (136098769968).

Almost surely, 2^544215052021 is an apocalyptic number.

It is an amenable number.

544215052021 is a deficient number, since it is larger than the sum of its proper divisors (180027851).

544215052021 is a wasteful number, since it uses less digits than its factorization.

544215052021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180027850.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 544215052021 its reverse (120250512445), we get a palindrome (664465564466).

The spelling of 544215052021 in words is "five hundred forty-four billion, two hundred fifteen million, fifty-two thousand, twenty-one".