51826655552 has 42 divisors (see below), whose sum is σ = 119634305562. Its totient is φ = 22211422464.

The previous prime is 51826655533. The next prime is 51826655563. The reversal of 51826655552 is 25555662815.

It can be written as a sum of positive squares in only one way, i.e., 50402046016 + 1424609536 = 224504^2 + 37744^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51826655552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8260043 + ... + 8266314.

Almost surely, 2^51826655552 is an apocalyptic number.

It is an amenable number.

51826655552 is an abundant number, since it is smaller than the sum of its proper divisors (67807650010).

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

51826655552 is a wasteful number, since it uses less digits than its factorization.

51826655552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16526383 (or 16526366 counting only the distinct ones).

The product of its digits is 3600000, while the sum is 50.

The spelling of 51826655552 in words is "fifty-one billion, eight hundred twenty-six million, six hundred fifty-five thousand, five hundred fifty-two".