553959946 has 8 divisors (see below), whose sum is σ = 831317760. Its totient is φ = 276854028.

The previous prime is 553959937. The next prime is 553959983. The reversal of 553959946 is 649959355.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57376 + ... + 66331.

It is an arithmetic number, because the mean of its divisors is an integer number (103914720).

Almost surely, 2^553959946 is an apocalyptic number.

553959946 is a deficient number, since it is larger than the sum of its proper divisors (277357814).

553959946 is a wasteful number, since it uses less digits than its factorization.

553959946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125948.

The product of its digits is 6561000, while the sum is 55.

The square root of 553959946 is about 23536.3537108024. The cubic root of 553959946 is about 821.2829144604.

It can be divided in two parts, 55395 and 9946, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 553959946 in words is "five hundred fifty-three million, nine hundred fifty-nine thousand, nine hundred forty-six".