554434621 has 4 divisors (see below), whose sum is σ = 597083452. Its totient is φ = 511785792.

The previous prime is 554434591. The next prime is 554434631. The reversal of 554434621 is 126434455.

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 323820025 + 230614596 = 17995^2 + 15186^2 .

It is a cyclic number.

It is not a de Polignac number, because 554434621 - 2⁵ = 554434589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554434631) 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, 21324396 + ... + 21324421.

It is an arithmetic number, because the mean of its divisors is an integer number (149270863).

Almost surely, 2^554434621 is an apocalyptic number.

It is an amenable number.

554434621 is a deficient number, since it is larger than the sum of its proper divisors (42648831).

554434621 is a wasteful number, since it uses less digits than its factorization.

554434621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42648830.

The product of its digits is 57600, while the sum is 34.

The square root of 554434621 is about 23546.4354202499. The cubic root of 554434621 is about 821.5174267053.

The spelling of 554434621 in words is "five hundred fifty-four million, four hundred thirty-four thousand, six hundred twenty-one".