53005052778 has 32 divisors (see below), whose sum is σ = 111407246016. Its totient is φ = 16791038208.

The previous prime is 53005052773. The next prime is 53005052827. The reversal of 53005052778 is 87725050035.

It is not an unprimeable number, because it can be changed into a prime (53005052773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2766751 + ... + 2785842.

It is an arithmetic number, because the mean of its divisors is an integer number (3481476438).

Almost surely, 2^53005052778 is an apocalyptic number.

53005052778 is an abundant number, since it is smaller than the sum of its proper divisors (58402193238).

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

53005052778 is a wasteful number, since it uses less digits than its factorization.

53005052778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5552678.

The product of its (nonzero) digits is 294000, while the sum is 42.

The spelling of 53005052778 in words is "fifty-three billion, five million, fifty-two thousand, seven hundred seventy-eight".