554743381 has 4 divisors (see below), whose sum is σ = 554891212. Its totient is φ = 554595552.

The previous prime is 554743369. The next prime is 554743403. The reversal of 554743381 is 183347455.

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 536339281 + 18404100 = 23159^2 + 4290^2 .

It is a cyclic number.

It is not a de Polignac number, because 554743381 - 2⁷ = 554743253 is a prime.

It is a super-2 number, since 2×554743381² = 615480437526622322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554743351) 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, 68136 + ... + 75841.

It is an arithmetic number, because the mean of its divisors is an integer number (138722803).

Almost surely, 2^554743381 is an apocalyptic number.

It is an amenable number.

554743381 is a deficient number, since it is larger than the sum of its proper divisors (147831).

554743381 is a wasteful number, since it uses less digits than its factorization.

554743381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147830.

The product of its digits is 201600, while the sum is 40.

The square root of 554743381 is about 23552.9909141069. The cubic root of 554743381 is about 821.6698971320.

The spelling of 554743381 in words is "five hundred fifty-four million, seven hundred forty-three thousand, three hundred eighty-one".