51712429950 has 72 divisors (see below), whose sum is σ = 142165139688. Its totient is φ = 13469279040.

The previous prime is 51712429883. The next prime is 51712429963. The reversal of 51712429950 is 5992421715.

51712429950 is a `hidden beast` number, since 5 + 171 + 2 + 429 + 9 + 50 = 666.

51712429950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51712429950² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 51712429896 and 51712429905.

It is a congruent number.

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, 1316889 + ... + 1355588.

It is an arithmetic number, because the mean of its divisors is an integer number (1974515829).

Almost surely, 2^51712429950 is an apocalyptic number.

51712429950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51712429950 is an abundant number, since it is smaller than the sum of its proper divisors (90452709738).

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

51712429950 is a wasteful number, since it uses less digits than its factorization.

51712429950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672538 (or 2672530 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 51712429950 in words is "fifty-one billion, seven hundred twelve million, four hundred twenty-nine thousand, nine hundred fifty".