4550521345 has 4 divisors (see below), whose sum is σ = 5460625620. Its totient is φ = 3640417072.

The previous prime is 4550521333. The next prime is 4550521351. The reversal of 4550521345 is 5431250554.

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 2959468801 + 1591052544 = 54401^2 + 39888^2 .

It is a cyclic number.

It is not a de Polignac number, because 4550521345 - 2¹³ = 4550513153 is a prime.

It is a super-2 number, since 2×4550521345² = 41414489022601218050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4550521345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455052130 + ... + 455052139.

It is an arithmetic number, because the mean of its divisors is an integer number (1365156405).

Almost surely, 2^4550521345 is an apocalyptic number.

It is an amenable number.

4550521345 is a deficient number, since it is larger than the sum of its proper divisors (910104275).

4550521345 is an equidigital number, since it uses as much as digits as its factorization.

4550521345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910104274.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 4550521345 is about 67457.5521717176. The cubic root of 4550521345 is about 1657.1190831391.

Adding to 4550521345 its reverse (5431250554), we get a palindrome (9981771899).

The spelling of 4550521345 in words is "four billion, five hundred fifty million, five hundred twenty-one thousand, three hundred forty-five".