550726401 has 8 divisors (see below), whose sum is σ = 749925504. Its totient is φ = 359339120.

The previous prime is 550726387. The next prime is 550726403. The reversal of 550726401 is 104627055.

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 550726401 - 2⁵ = 550726369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550726403) 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, 1952790 + ... + 1953071.

It is an arithmetic number, because the mean of its divisors is an integer number (93740688).

Almost surely, 2^550726401 is an apocalyptic number.

It is an amenable number.

550726401 is a deficient number, since it is larger than the sum of its proper divisors (199199103).

550726401 is a wasteful number, since it uses less digits than its factorization.

550726401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905911.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 550726401 is about 23467.5606103404. The cubic root of 550726401 is about 819.6818124001.

The spelling of 550726401 in words is "five hundred fifty million, seven hundred twenty-six thousand, four hundred one".