51626626 has 8 divisors (see below), whose sum is σ = 79328844. Its totient is φ = 25183680.

The previous prime is 51626609. The next prime is 51626639. The reversal of 51626626 is 62662615.

It can be written as a sum of positive squares in 2 ways, for example, as 51624225 + 2401 = 7185^2 + 49^2 .

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

It is a super-3 number, since 3×51626626³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51626591 and 51626600.

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, 314715 + ... + 314878.

Almost surely, 2^51626626 is an apocalyptic number.

51626626 is a deficient number, since it is larger than the sum of its proper divisors (27702218).

51626626 is a wasteful number, since it uses less digits than its factorization.

51626626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629636.

The product of its digits is 25920, while the sum is 34.

The square root of 51626626 is about 7185.1670822605. The cubic root of 51626626 is about 372.3556211184.

The spelling of 51626626 in words is "fifty-one million, six hundred twenty-six thousand, six hundred twenty-six".