52780302805005 has 20 divisors (see below), whose sum is σ = 94613579843772. Its totient is φ = 28149494829120.

The previous prime is 52780302805001. The next prime is 52780302805007. The reversal of 52780302805005 is 50050820308725.

52780302805005 is a `hidden beast` number, since 52 + 78 + 0 + 3 + 0 + 28 + 0 + 500 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21519031377321 + 31261271427684 = 4638861^2 + 5591178^2 .

It is not a de Polignac number, because 52780302805005 - 2² = 52780302805001 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52780302805001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65160867256 + ... + 65160868065.

Almost surely, 2^{52780302805005} is an apocalyptic number.

It is an amenable number.

52780302805005 is a deficient number, since it is larger than the sum of its proper divisors (41833277038767).

52780302805005 is a wasteful number, since it uses less digits than its factorization.

52780302805005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130321735338 (or 130321735329 counting only the distinct ones).

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

The spelling of 52780302805005 in words is "fifty-two trillion, seven hundred eighty billion, three hundred two million, eight hundred five thousand, five".