51953448080 has 80 divisors (see below), whose sum is σ = 124765824000. Its totient is φ = 20098506240.

The previous prime is 51953448067. The next prime is 51953448091. The reversal of 51953448080 is 8084435915.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 4654346 + ... + 4665494.

It is an arithmetic number, because the mean of its divisors is an integer number (1559572800).

Almost surely, 2^51953448080 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 51953448080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62382912000).

51953448080 is an abundant number, since it is smaller than the sum of its proper divisors (72812375920).

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

51953448080 is a wasteful number, since it uses less digits than its factorization.

51953448080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072 (or 13066 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 51953448080 in words is "fifty-one billion, nine hundred fifty-three million, four hundred forty-eight thousand, eighty".