44555000541521 has 4 divisors (see below), whose sum is σ = 45641707871844. Its totient is φ = 43468293211200.

The previous prime is 44555000541511. The next prime is 44555000541683. The reversal of 44555000541521 is 12514500055544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3749989647121 + 40805010894400 = 1936489^2 + 6387880^2 .

It is a cyclic number.

It is not a de Polignac number, because 44555000541521 - 2²² = 44554996347217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1086707330281 = 44555000541521 / (4 + 4 + 5 + 5 + 5 + 0 + 0 + 0 + 5 + 4 + 1 + 5 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44555000541511) 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, 543353665100 + ... + 543353665181.

It is an arithmetic number, because the mean of its divisors is an integer number (11410426967961).

Almost surely, 2^{44555000541521} is an apocalyptic number.

44555000541521 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44555000541521 is a deficient number, since it is larger than the sum of its proper divisors (1086707330323).

44555000541521 is a wasteful number, since it uses less digits than its factorization.

44555000541521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086707330322.

The product of its (nonzero) digits is 400000, while the sum is 41.

The spelling of 44555000541521 in words is "forty-four trillion, five hundred fifty-five billion, five hundred forty-one thousand, five hundred twenty-one".