51001059936 has 48 divisors (see below), whose sum is σ = 133904555568. Its totient is φ = 16996953600.

The previous prime is 51001059881. The next prime is 51001059959. The reversal of 51001059936 is 63995010015.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×51001059936² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51001059894 and 51001059903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454566 + ... + 555546.

It is an arithmetic number, because the mean of its divisors is an integer number (2789678241).

Almost surely, 2^51001059936 is an apocalyptic number.

It is an amenable number.

51001059936 is an abundant number, since it is smaller than the sum of its proper divisors (82903495632).

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

51001059936 is a wasteful number, since it uses less digits than its factorization.

51001059936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106255 (or 106247 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 39.

The spelling of 51001059936 in words is "fifty-one billion, one million, fifty-nine thousand, nine hundred thirty-six".