550961401 has 16 divisors (see below), whose sum is σ = 586160640. Its totient is φ = 517003200.

The previous prime is 550961393. The next prime is 550961407. The reversal of 550961401 is 104169055.

It is a cyclic number.

It is not a de Polignac number, because 550961401 - 2³ = 550961393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550961407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204475 + ... + 207151.

It is an arithmetic number, because the mean of its divisors is an integer number (36635040).

Almost surely, 2^550961401 is an apocalyptic number.

It is an amenable number.

550961401 is a deficient number, since it is larger than the sum of its proper divisors (35199239).

550961401 is a wasteful number, since it uses less digits than its factorization.

550961401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 550961401 is about 23472.5669878691. The cubic root of 550961401 is about 819.7983844002.

The spelling of 550961401 in words is "five hundred fifty million, nine hundred sixty-one thousand, four hundred one".