554997403 has 4 divisors (see below), whose sum is σ = 555628248. Its totient is φ = 554366560.

The previous prime is 554997349. The next prime is 554997427. The reversal of 554997403 is 304799455.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 554997403 - 2⁹ = 554996891 is a prime.

It is a super-4 number, since 4×554997403⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554997473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314101 + ... + 315862.

It is an arithmetic number, because the mean of its divisors is an integer number (138907062).

Almost surely, 2^554997403 is an apocalyptic number.

554997403 is a deficient number, since it is larger than the sum of its proper divisors (630845).

554997403 is an equidigital number, since it uses as much as digits as its factorization.

554997403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630844.

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 554997403 is about 23558.3828604597. The cubic root of 554997403 is about 821.7952946805.

The spelling of 554997403 in words is "five hundred fifty-four million, nine hundred ninety-seven thousand, four hundred three".