536654581 has 2 divisors, whose sum is σ = 536654582. Its totient is φ = 536654580.

The previous prime is 536654579. The next prime is 536654593. The reversal of 536654581 is 185456635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340402500 + 196252081 = 18450^2 + 14009^2 .

It is a cyclic number.

It is not a de Polignac number, because 536654581 - 2¹ = 536654579 is a prime.

It is a super-2 number, since 2×536654581² = 575996278616571122, which contains 22 as substring.

Together with 536654579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (536654551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268327290 + 268327291.

It is an arithmetic number, because the mean of its divisors is an integer number (268327291).

Almost surely, 2^536654581 is an apocalyptic number.

It is an amenable number.

536654581 is a deficient number, since it is larger than the sum of its proper divisors (1).

536654581 is an equidigital number, since it uses as much as digits as its factorization.

536654581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432000, while the sum is 43.

The square root of 536654581 is about 23165.8062885797. The cubic root of 536654581 is about 812.6401587320.

The spelling of 536654581 in words is "five hundred thirty-six million, six hundred fifty-four thousand, five hundred eighty-one".