550504397 has 8 divisors (see below), whose sum is σ = 560472000. Its totient is φ = 540558144.

The previous prime is 550504363. The next prime is 550504403. The reversal of 550504397 is 793405055.

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 a de Polignac number, because none of the positive numbers 2^k-550504397 is a prime.

It is a super-2 number, since 2×550504397² = 606110182232667218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550504397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550504307) 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, 52229 + ... + 61877.

It is an arithmetic number, because the mean of its divisors is an integer number (70059000).

Almost surely, 2^550504397 is an apocalyptic number.

It is an amenable number.

550504397 is a deficient number, since it is larger than the sum of its proper divisors (9967603).

550504397 is an equidigital number, since it uses as much as digits as its factorization.

550504397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10675.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 550504397 is about 23462.8301148860. The cubic root of 550504397 is about 819.5716566144.

The spelling of 550504397 in words is "five hundred fifty million, five hundred four thousand, three hundred ninety-seven".