5891531 has 2 divisors, whose sum is σ = 5891532. Its totient is φ = 5891530.

The previous prime is 5891521. The next prime is 5891569. The reversal of 5891531 is 1351985.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5891531 - 2⁶ = 5891467 is a prime.

It is a super-2 number, since 2×5891531² = 69420275047922, which contains 22 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5891521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2945765 + 2945766.

It is an arithmetic number, because the mean of its divisors is an integer number (2945766).

Almost surely, 2^5891531 is an apocalyptic number.

5891531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5891531 is an equidigital number, since it uses as much as digits as its factorization.

5891531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 32.

The square root of 5891531 is about 2427.2476181881. The cubic root of 5891531 is about 180.6103866643.

The spelling of 5891531 in words is "five million, eight hundred ninety-one thousand, five hundred thirty-one".