53005780780 has 12 divisors (see below), whose sum is σ = 111312139680. Its totient is φ = 21202312304.

The previous prime is 53005780721. The next prime is 53005780781. The reversal of 53005780780 is 8708750035.

It is a super-2 number, since 2×53005780780² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53005780781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325144500 + ... + 1325144539.

It is an arithmetic number, because the mean of its divisors is an integer number (9276011640).

Almost surely, 2^53005780780 is an apocalyptic number.

It is an amenable number.

53005780780 is an abundant number, since it is smaller than the sum of its proper divisors (58306358900).

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

53005780780 is a wasteful number, since it uses less digits than its factorization.

53005780780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650289048 (or 2650289046 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 53005780780 in words is "fifty-three billion, five million, seven hundred eighty thousand, seven hundred eighty".