51623224650 has 72 divisors (see below), whose sum is σ = 138802577004. Its totient is φ = 13755456000.

The previous prime is 51623224649. The next prime is 51623224661. The reversal of 51623224650 is 5642232615.

51623224650 is a `hidden beast` number, since 5 + 1 + 623 + 2 + 24 + 6 + 5 + 0 = 666.

51623224650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 5544738369 + 46078486281 = 74463^2 + 214659^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 541362 + ... + 629538.

Almost surely, 2^51623224650 is an apocalyptic number.

51623224650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51623224650 is an abundant number, since it is smaller than the sum of its proper divisors (87179352354).

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

51623224650 is a wasteful number, since it uses less digits than its factorization.

51623224650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89496 (or 89488 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 51623224650 in words is "fifty-one billion, six hundred twenty-three million, two hundred twenty-four thousand, six hundred fifty".