550909457 has 8 divisors (see below), whose sum is σ = 633781632. Its totient is φ = 469080000.

The previous prime is 550909451. The next prime is 550909459. The reversal of 550909457 is 754909055.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550909457 - 2⁶ = 550909393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550909451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259544 + ... + 261657.

It is an arithmetic number, because the mean of its divisors is an integer number (79222704).

Almost surely, 2^550909457 is an apocalyptic number.

It is an amenable number.

550909457 is a deficient number, since it is larger than the sum of its proper divisors (82872175).

550909457 is a wasteful number, since it uses less digits than its factorization.

550909457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521359.

The product of its (nonzero) digits is 283500, while the sum is 44.

The square root of 550909457 is about 23471.4604786323. The cubic root of 550909457 is about 819.7726203778.

The spelling of 550909457 in words is "five hundred fifty million, nine hundred nine thousand, four hundred fifty-seven".