525000027805 has 12 divisors (see below), whose sum is σ = 692479376316. Its totient is φ = 381818201600.

The previous prime is 525000027791. The next prime is 525000027833. The reversal of 525000027805 is 508720000525.

It can be written as a sum of positive squares in 2 ways, for example, as 248094644281 + 276905383524 = 498091^2 + 526218^2 .

It is a de Polignac number, because none of the positive numbers 2^k-525000027805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433883716 + ... + 433884925.

It is an arithmetic number, because the mean of its divisors is an integer number (57706614693).

Almost surely, 2^525000027805 is an apocalyptic number.

525000027805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525000027805 is a deficient number, since it is larger than the sum of its proper divisors (167479348511).

525000027805 is a wasteful number, since it uses less digits than its factorization.

525000027805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867768668 (or 867768657 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The spelling of 525000027805 in words is "five hundred twenty-five billion, twenty-seven thousand, eight hundred five".