553154321 has 4 divisors (see below), whose sum is σ = 554113572. Its totient is φ = 552195072.

The previous prime is 553154311. The next prime is 553154363. The reversal of 553154321 is 123451355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123451355 = 5 ⋅24690271.

It can be written as a sum of positive squares in 2 ways, for example, as 354907921 + 198246400 = 18839^2 + 14080^2 .

It is a cyclic number.

It is not a de Polignac number, because 553154321 - 2⁶ = 553154257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553154311) 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, 478760 + ... + 479913.

It is an arithmetic number, because the mean of its divisors is an integer number (138528393).

Almost surely, 2^553154321 is an apocalyptic number.

It is an amenable number.

553154321 is a deficient number, since it is larger than the sum of its proper divisors (959251).

553154321 is an equidigital number, since it uses as much as digits as its factorization.

553154321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959250.

The product of its digits is 9000, while the sum is 29.

The square root of 553154321 is about 23519.2330019497. The cubic root of 553154321 is about 820.8845902034.

The spelling of 553154321 in words is "five hundred fifty-three million, one hundred fifty-four thousand, three hundred twenty-one".