536561001 has 6 divisors (see below), whose sum is σ = 775032570. Its totient is φ = 357707328.

The previous prime is 536560967. The next prime is 536561027. The reversal of 536561001 is 100165635.

It is a happy number.

536561001 is a `hidden beast` number, since 5 + 3 + 656 + 1 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 408848400 + 127712601 = 20220^2 + 11301^2 .

It is not a de Polignac number, because 536561001 - 2¹⁹ = 536036713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (536561101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29808936 + ... + 29808953.

It is an arithmetic number, because the mean of its divisors is an integer number (129172095).

Almost surely, 2^536561001 is an apocalyptic number.

It is an amenable number.

536561001 is a deficient number, since it is larger than the sum of its proper divisors (238471569).

536561001 is a wasteful number, since it uses less digits than its factorization.

536561001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59617895 (or 59617892 counting only the distinct ones).

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

The square root of 536561001 is about 23163.7864132788. The cubic root of 536561001 is about 812.5929208442.

It can be divided in two parts, 5365 and 61001, that added together give a palindrome (66366).

The spelling of 536561001 in words is "five hundred thirty-six million, five hundred sixty-one thousand, one".