52078393520 has 80 divisors (see below), whose sum is σ = 130563830880. Its totient is φ = 19253606400.

The previous prime is 52078393519. The next prime is 52078393529. The reversal of 52078393520 is 2539387025.

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

It is not an unprimeable number, because it can be changed into a prime (52078393529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355511 + ... + 480150.

It is an arithmetic number, because the mean of its divisors is an integer number (1632047886).

Almost surely, 2^52078393520 is an apocalyptic number.

It is an amenable number.

52078393520 is an abundant number, since it is smaller than the sum of its proper divisors (78485437360).

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

52078393520 is a wasteful number, since it uses less digits than its factorization.

52078393520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835734 (or 835728 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 52078393520 in words is "fifty-two billion, seventy-eight million, three hundred ninety-three thousand, five hundred twenty".