553944377 has 4 divisors (see below), whose sum is σ = 633079296. Its totient is φ = 474809460.

The previous prime is 553944311. The next prime is 553944383. The reversal of 553944377 is 773449355.

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 553944377 - 2¹⁰ = 553943353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553944077) 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, 39567449 + ... + 39567462.

It is an arithmetic number, because the mean of its divisors is an integer number (158269824).

Almost surely, 2^553944377 is an apocalyptic number.

It is an amenable number.

553944377 is a deficient number, since it is larger than the sum of its proper divisors (79134919).

553944377 is an equidigital number, since it uses as much as digits as its factorization.

553944377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79134918.

The product of its digits is 1587600, while the sum is 47.

The square root of 553944377 is about 23536.0229648086. The cubic root of 553944377 is about 821.2752203581.

The spelling of 553944377 in words is "five hundred fifty-three million, nine hundred forty-four thousand, three hundred seventy-seven".