51061563036 has 72 divisors (see below), whose sum is σ = 140871354624. Its totient is φ = 15466033440.

The previous prime is 51061562999. The next prime is 51061563041. The reversal of 51061563036 is 63036516015.

51061563036 is a `hidden beast` number, since 5 + 1 + 0 + 6 + 15 + 630 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 859485 + ... + 916971.

It is an arithmetic number, because the mean of its divisors is an integer number (1956546592).

Almost surely, 2^51061563036 is an apocalyptic number.

It is an amenable number.

51061563036 is an abundant number, since it is smaller than the sum of its proper divisors (89809791588).

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

51061563036 is a wasteful number, since it uses less digits than its factorization.

51061563036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59751 (or 59746 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The spelling of 51061563036 in words is "fifty-one billion, sixty-one million, five hundred sixty-three thousand, thirty-six".