51953530794 has 128 divisors (see below), whose sum is σ = 117259591680. Its totient is φ = 15211872000.

The previous prime is 51953530789. The next prime is 51953530801. The reversal of 51953530794 is 49703535915.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108462247 + ... + 108462725.

It is an arithmetic number, because the mean of its divisors is an integer number (916090560).

Almost surely, 2^51953530794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51953530794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58629795840).

51953530794 is an abundant number, since it is smaller than the sum of its proper divisors (65306060886).

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

51953530794 is a wasteful number, since it uses less digits than its factorization.

51953530794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 2551500, while the sum is 51.

The spelling of 51953530794 in words is "fifty-one billion, nine hundred fifty-three million, five hundred thirty thousand, seven hundred ninety-four".