550498521 has 8 divisors (see below), whose sum is σ = 735091360. Its totient is φ = 366452352.

The previous prime is 550498517. The next prime is 550498523. The reversal of 550498521 is 125894055.

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

It is not a de Polignac number, because 550498521 - 2² = 550498517 is a prime.

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 550498521.

It is not an unprimeable number, because it can be changed into a prime (550498523) 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, 134311 + ... + 138348.

It is an arithmetic number, because the mean of its divisors is an integer number (91886420).

Almost surely, 2^550498521 is an apocalyptic number.

It is an amenable number.

550498521 is a deficient number, since it is larger than the sum of its proper divisors (184592839).

550498521 is a wasteful number, since it uses less digits than its factorization.

550498521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273335.

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 550498521 is about 23462.7048952162. The cubic root of 550498521 is about 819.5687406097.

The spelling of 550498521 in words is "five hundred fifty million, four hundred ninety-eight thousand, five hundred twenty-one".