51026463552 has 112 divisors (see below), whose sum is σ = 136643538752. Its totient is φ = 16803348480.

The previous prime is 51026463529. The next prime is 51026463571. The reversal of 51026463552 is 25536462015.

It is a self number, because there is not a number n which added to its sum of digits gives 51026463552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11973102 + ... + 11977362.

It is an arithmetic number, because the mean of its divisors is an integer number (1220031596).

Almost surely, 2^51026463552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51026463552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68321769376).

51026463552 is an abundant number, since it is smaller than the sum of its proper divisors (85617075200).

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

51026463552 is a wasteful number, since it uses less digits than its factorization.

51026463552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016 (or 5006 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 51026463552 in words is "fifty-one billion, twenty-six million, four hundred sixty-three thousand, five hundred fifty-two".