550626631 has 4 divisors (see below), whose sum is σ = 579607000. Its totient is φ = 521646264.

The previous prime is 550626613. The next prime is 550626641. The reversal of 550626631 is 136626055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 550626631 - 2¹⁷ = 550495559 is a prime.

It is a super-2 number, since 2×550626631² = 606379373532820322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550626641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14490156 + ... + 14490193.

It is an arithmetic number, because the mean of its divisors is an integer number (144901750).

Almost surely, 2^550626631 is an apocalyptic number.

550626631 is a deficient number, since it is larger than the sum of its proper divisors (28980369).

550626631 is a wasteful number, since it uses less digits than its factorization.

550626631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28980368.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 550626631 is about 23465.4348137851. The cubic root of 550626631 is about 819.6323113574.

The spelling of 550626631 in words is "five hundred fifty million, six hundred twenty-six thousand, six hundred thirty-one".