506656626 has 16 divisors (see below), whose sum is σ = 1158072384. Its totient is φ = 144759024.

The previous prime is 506656607. The next prime is 506656637. The reversal of 506656626 is 626656605.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 12063253 = 506656626 / (5 + 0 + 6 + 6 + 5 + 6 + 6 + 2 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6031585 + ... + 6031668.

It is an arithmetic number, because the mean of its divisors is an integer number (72379524).

Almost surely, 2^506656626 is an apocalyptic number.

506656626 is an abundant number, since it is smaller than the sum of its proper divisors (651415758).

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

506656626 is a wasteful number, since it uses less digits than its factorization.

506656626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12063265.

The product of its (nonzero) digits is 388800, while the sum is 42.

The square root of 506656626 is about 22509.0343195793. The cubic root of 506656626 is about 797.2072547706.

It can be divided in two parts, 50665 and 6626, that added together give a triangular number (57291 = T₃₃₈).

The spelling of 506656626 in words is "five hundred six million, six hundred fifty-six thousand, six hundred twenty-six".