558243749 has 4 divisors (see below), whose sum is σ = 637992864. Its totient is φ = 478494636.

The previous prime is 558243737. The next prime is 558243767. The reversal of 558243749 is 947342855.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 558243749 - 2¹² = 558239653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (558243709) 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, 39874547 + ... + 39874560.

It is an arithmetic number, because the mean of its divisors is an integer number (159498216).

Almost surely, 2^558243749 is an apocalyptic number.

It is an amenable number.

558243749 is a deficient number, since it is larger than the sum of its proper divisors (79749115).

558243749 is an equidigital number, since it uses as much as digits as its factorization.

558243749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79749114.

The product of its digits is 1209600, while the sum is 47.

The square root of 558243749 is about 23627.1824177154. The cubic root of 558243749 is about 823.3944895847.

The spelling of 558243749 in words is "five hundred fifty-eight million, two hundred forty-three thousand, seven hundred forty-nine".