4550521440 has 96 divisors (see below), whose sum is σ = 14667561216. Its totient is φ = 1185246720.

The previous prime is 4550521429. The next prime is 4550521453. The reversal of 4550521440 is 441250554.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4550521398 and 4550521407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89596 + ... + 130875.

It is an arithmetic number, because the mean of its divisors is an integer number (152787096).

Almost surely, 2^4550521440 is an apocalyptic number.

4550521440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4550521440 is an abundant number, since it is smaller than the sum of its proper divisors (10117039776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4550521440 is a wasteful number, since it uses less digits than its factorization.

4550521440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220532 (or 220524 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 4550521440 is about 67457.5528758641. The cubic root of 4550521440 is about 1657.1190946709.

Adding to 4550521440 its reverse (441250554), we get a palindrome (4991771994).

The spelling of 4550521440 in words is "four billion, five hundred fifty million, five hundred twenty-one thousand, four hundred forty".