557149449 has 16 divisors (see below), whose sum is σ = 799899840. Its totient is φ = 343656960.

The previous prime is 557149427. The next prime is 557149471. The reversal of 557149449 is 944941755.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (557149427) and next prime (557149471).

It is not a de Polignac number, because 557149449 - 2⁹ = 557148937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 557149398 and 557149407.

It is not an unprimeable number, because it can be changed into a prime (557149049) 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 15 ways as a sum of consecutive naturals, for example, 89572 + ... + 95589.

It is an arithmetic number, because the mean of its divisors is an integer number (49993740).

Almost surely, 2^557149449 is an apocalyptic number.

557149449 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

557149449 is a deficient number, since it is larger than the sum of its proper divisors (242750391).

557149449 is a wasteful number, since it uses less digits than its factorization.

557149449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185240.

The product of its digits is 907200, while the sum is 48.

The square root of 557149449 is about 23604.0134087405. The cubic root of 557149449 is about 822.8561166428.

The spelling of 557149449 in words is "five hundred fifty-seven million, one hundred forty-nine thousand, four hundred forty-nine".