550421694 has 48 divisors (see below), whose sum is σ = 1278100512. Its totient is φ = 170748864.

The previous prime is 550421693. The next prime is 550421701. The reversal of 550421694 is 496124055.

550421694 is a `hidden beast` number, since 550 + 4 + 2 + 16 + 94 = 666.

550421694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550421693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2649 + ... + 33284.

It is an arithmetic number, because the mean of its divisors is an integer number (26627094).

Almost surely, 2^550421694 is an apocalyptic number.

550421694 is an abundant number, since it is smaller than the sum of its proper divisors (727678818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550421694 is a wasteful number, since it uses less digits than its factorization.

550421694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36001 (or 35998 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 550421694 is about 23461.0676227660. The cubic root of 550421694 is about 819.5306127828.

The spelling of 550421694 in words is "five hundred fifty million, four hundred twenty-one thousand, six hundred ninety-four".