550028949 has 4 divisors (see below), whose sum is σ = 733371936. Its totient is φ = 366685964.

The previous prime is 550028911. The next prime is 550028951. The reversal of 550028949 is 949820055.

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 a de Polignac number, because none of the positive numbers 2^k-550028949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550028949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550028909) 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, 91671489 + ... + 91671494.

It is an arithmetic number, because the mean of its divisors is an integer number (183342984).

Almost surely, 2^550028949 is an apocalyptic number.

It is an amenable number.

550028949 is a deficient number, since it is larger than the sum of its proper divisors (183342987).

550028949 is a wasteful number, since it uses less digits than its factorization.

550028949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183342986.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 550028949 is about 23452.6959857497. The cubic root of 550028949 is about 819.3356452160.

The spelling of 550028949 in words is "five hundred fifty million, twenty-eight thousand, nine hundred forty-nine".