5291375805 has 24 divisors (see below), whose sum is σ = 9173437728. Its totient is φ = 2821538016.

The previous prime is 5291375801. The next prime is 5291375863. The reversal of 5291375805 is 5085731925.

5291375805 is a `hidden beast` number, since 52 + 9 + 13 + 7 + 580 + 5 = 666.

It is not a de Polignac number, because 5291375805 - 2² = 5291375801 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5291375801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400434 + ... + 413436.

It is an arithmetic number, because the mean of its divisors is an integer number (382226572).

Almost surely, 2^5291375805 is an apocalyptic number.

It is an amenable number.

5291375805 is a deficient number, since it is larger than the sum of its proper divisors (3882061923).

5291375805 is a wasteful number, since it uses less digits than its factorization.

5291375805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22057 (or 22054 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 5291375805 is about 72741.8435633852. The cubic root of 5291375805 is about 1742.5672023523.

The spelling of 5291375805 in words is "five billion, two hundred ninety-one million, three hundred seventy-five thousand, eight hundred five".