51655655626 has 8 divisors (see below), whose sum is σ = 82041335460. Its totient is φ = 24308543808.

The previous prime is 51655655621. The next prime is 51655655627. The reversal of 51655655626 is 62655655615.

It can be written as a sum of positive squares in 2 ways, for example, as 47989474225 + 3666181401 = 219065^2 + 60549^2 .

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

It is not an unprimeable number, because it can be changed into a prime (51655655621) 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, 759641961 + ... + 759642028.

Almost surely, 2^51655655626 is an apocalyptic number.

51655655626 is a deficient number, since it is larger than the sum of its proper divisors (30385679834).

51655655626 is a wasteful number, since it uses less digits than its factorization.

51655655626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519284008.

The product of its digits is 8100000, while the sum is 52.

It can be divided in two parts, 51655 and 655626, that added together give a 4-th power (707281 = 29⁴).

The spelling of 51655655626 in words is "fifty-one billion, six hundred fifty-five million, six hundred fifty-five thousand, six hundred twenty-six".