554780231 has 2 divisors, whose sum is σ = 554780232. Its totient is φ = 554780230.

The previous prime is 554780207. The next prime is 554780251. The reversal of 554780231 is 132087455.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 554780231 - 2²² = 550585927 is a prime.

It is a super-2 number, since 2×554780231² = 615562209416826722, which contains 22 as substring.

It is equal to p_29083076 and since 554780231 and 29083076 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 554780191 and 554780200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554780251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277390115 + 277390116.

It is an arithmetic number, because the mean of its divisors is an integer number (277390116).

Almost surely, 2^554780231 is an apocalyptic number.

554780231 is a deficient number, since it is larger than the sum of its proper divisors (1).

554780231 is an equidigital number, since it uses as much as digits as its factorization.

554780231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 554780231 is about 23553.7731796840. The cubic root of 554780231 is about 821.6880904482.

The spelling of 554780231 in words is "five hundred fifty-four million, seven hundred eighty thousand, two hundred thirty-one".