52780300280505 has 32 divisors (see below), whose sum is σ = 107236165651200. Its totient is φ = 24128137270656.

The previous prime is 52780300280489. The next prime is 52780300280509. The reversal of 52780300280505 is 50508200308725.

52780300280505 is a `hidden beast` number, since 5 + 278 + 0 + 300 + 28 + 0 + 50 + 5 = 666.

It is not a de Polignac number, because 52780300280505 - 2⁴ = 52780300280489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (52780300280509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27926083860 + ... + 27926085749.

It is an arithmetic number, because the mean of its divisors is an integer number (3351130176600).

Almost surely, 2^{52780300280505} is an apocalyptic number.

It is an amenable number.

52780300280505 is an abundant number, since it is smaller than the sum of its proper divisors (54455865370695).

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

52780300280505 is a wasteful number, since it uses less digits than its factorization.

52780300280505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55852169630 (or 55852169624 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 52780300280505 in words is "fifty-two trillion, seven hundred eighty billion, three hundred million, two hundred eighty thousand, five hundred five".