553303355 has 32 divisors (see below), whose sum is σ = 741229056. Its totient is φ = 396396000.

The previous prime is 553303349. The next prime is 553303391.

553303355 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 553303355 - 2⁴ = 553303339 is a prime.

It is a super-2 number, since 2×553303355² = 612289205308512050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471920 + ... + 473090.

It is an arithmetic number, because the mean of its divisors is an integer number (23163408).

Almost surely, 2^553303355 is an apocalyptic number.

553303355 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

553303355 is a deficient number, since it is larger than the sum of its proper divisors (187925701).

553303355 is a wasteful number, since it uses less digits than its factorization.

553303355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 50625, while the sum is 32.

The square root of 553303355 is about 23522.4011316872. The cubic root of 553303355 is about 820.9583060568.

It can be divided in two parts, 55330 and 3355, that added together give a palindrome (58685).

The spelling of 553303355 in words is "five hundred fifty-three million, three hundred three thousand, three hundred fifty-five".