553090646 has 32 divisors (see below), whose sum is σ = 887483520. Its totient is φ = 257774400.

The previous prime is 553090567. The next prime is 553090649. The reversal of 553090646 is 646090355.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553090649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681581 + ... + 682391.

It is an arithmetic number, because the mean of its divisors is an integer number (27733860).

Almost surely, 2^553090646 is an apocalyptic number.

553090646 is a deficient number, since it is larger than the sum of its proper divisors (334392874).

553090646 is a wasteful number, since it uses less digits than its factorization.

553090646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 553090646 is about 23517.8792836429. The cubic root of 553090646 is about 820.8530909574.

The spelling of 553090646 in words is "five hundred fifty-three million, ninety thousand, six hundred forty-six".