5166531 has 8 divisors (see below), whose sum is σ = 7654160. Its totient is φ = 3444336.

The previous prime is 5166527. The next prime is 5166541. The reversal of 5166531 is 1356615.

It is a happy number.

5166531 is a `hidden beast` number, since 5 + 1 + 6 + 653 + 1 = 666.

It is not a de Polignac number, because 5166531 - 2² = 5166527 is a prime.

It is a super-2 number, since 2×5166531² = 53386085147922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 191353 = 5166531 / (5 + 1 + 6 + 6 + 5 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5166495 and 5166504.

It is not an unprimeable number, because it can be changed into a prime (5166541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95650 + ... + 95703.

It is an arithmetic number, because the mean of its divisors is an integer number (956770).

Almost surely, 2^5166531 is an apocalyptic number.

5166531 is a deficient number, since it is larger than the sum of its proper divisors (2487629).

5166531 is a wasteful number, since it uses less digits than its factorization.

5166531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191362 (or 191356 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 5166531 is about 2273.0004399472. Note that the first 3 decimals coincide. The cubic root of 5166531 is about 172.8753264377.

The spelling of 5166531 in words is "five million, one hundred sixty-six thousand, five hundred thirty-one".