51615058950 has 972 divisors, whose sum is σ = 190931736060. Its totient is φ = 10317041280.

The previous prime is 51615058939. The next prime is 51615059011. The reversal of 51615058950 is 5985051615.

51615058950 is a `hidden beast` number, since 5 + 1 + 6 + 15 + 0 + 589 + 50 = 666.

It is a super-2 number, since 2×51615058950² (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 = 51615058896 and 51615058905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 485 ways as a sum of consecutive naturals, for example, 2716582041 + ... + 2716582059.

Almost surely, 2^51615058950 is an apocalyptic number.

51615058950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51615058950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95465868030).

51615058950 is an abundant number, since it is smaller than the sum of its proper divisors (139316677110).

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

51615058950 is a wasteful number, since it uses less digits than its factorization.

51615058950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 45.

The spelling of 51615058950 in words is "fifty-one billion, six hundred fifteen million, fifty-eight thousand, nine hundred fifty".