5551503313 has 4 divisors (see below), whose sum is σ = 5557151808. Its totient is φ = 5545854820.

The previous prime is 5551503271. The next prime is 5551503317. The reversal of 5551503313 is 3133051555.

It is a happy number.

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 5551503313 - 2¹³ = 5551495121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5551503317) 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, 2822773 + ... + 2824738.

It is an arithmetic number, because the mean of its divisors is an integer number (1389287952).

Almost surely, 2^5551503313 is an apocalyptic number.

It is an amenable number.

5551503313 is a deficient number, since it is larger than the sum of its proper divisors (5648495).

5551503313 is an equidigital number, since it uses as much as digits as its factorization.

5551503313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648494.

The product of its (nonzero) digits is 16875, while the sum is 31.

The square root of 5551503313 is about 74508.4110218437. The cubic root of 5551503313 is about 1770.6668955369. Note that the first 3 decimals are identical.

Adding to 5551503313 its reverse (3133051555), we get a palindrome (8684554868).

The spelling of 5551503313 in words is "five billion, five hundred fifty-one million, five hundred three thousand, three hundred thirteen".