550637646 has 32 divisors (see below), whose sum is σ = 1188190080. Its totient is φ = 169112544.

The previous prime is 550637639. The next prime is 550637653. The reversal of 550637646 is 646736055.

It is an interprime number because it is at equal distance from previous prime (550637639) and next prime (550637653).

It is a junction number, because it is equal to n+sod(n) for n = 550637598 and 550637607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37645 + ... + 50183.

It is an arithmetic number, because the mean of its divisors is an integer number (37130940).

Almost surely, 2^550637646 is an apocalyptic number.

550637646 is an abundant number, since it is smaller than the sum of its proper divisors (637552434).

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

550637646 is a wasteful number, since it uses less digits than its factorization.

550637646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13120.

The product of its (nonzero) digits is 453600, while the sum is 42.

The square root of 550637646 is about 23465.6695195343. The cubic root of 550637646 is about 819.6377767606.

The spelling of 550637646 in words is "five hundred fifty million, six hundred thirty-seven thousand, six hundred forty-six".