554780819 has 2 divisors, whose sum is σ = 554780820. Its totient is φ = 554780818.

The previous prime is 554780803. The next prime is 554780827. The reversal of 554780819 is 918087455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 554780819 - 2⁴ = 554780803 is a prime.

It is a super-2 number, since 2×554780819² = 615563514260621522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (554780869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277390409 + 277390410.

It is an arithmetic number, because the mean of its divisors is an integer number (277390410).

Almost surely, 2^554780819 is an apocalyptic number.

554780819 is a deficient number, since it is larger than the sum of its proper divisors (1).

554780819 is an equidigital number, since it uses as much as digits as its factorization.

554780819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 554780819 is about 23553.7856617572. The cubic root of 554780819 is about 821.6883807448.

It can be divided in two parts, 55 and 4780819, that added together give a palindrome (4780874).

The spelling of 554780819 in words is "five hundred fifty-four million, seven hundred eighty thousand, eight hundred nineteen".