536646461 has 4 divisors (see below), whose sum is σ = 577926972. Its totient is φ = 495365952.

The previous prime is 536646457. The next prime is 536646491. The reversal of 536646461 is 164646635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164646635 = 5 ⋅32929327.

It can be written as a sum of positive squares in 2 ways, for example, as 269944900 + 266701561 = 16430^2 + 16331^2 .

It is a cyclic number.

It is not a de Polignac number, because 536646461 - 2² = 536646457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536646491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20640236 + ... + 20640261.

It is an arithmetic number, because the mean of its divisors is an integer number (144481743).

Almost surely, 2^536646461 is an apocalyptic number.

It is an amenable number.

536646461 is a deficient number, since it is larger than the sum of its proper divisors (41280511).

536646461 is a wasteful number, since it uses less digits than its factorization.

536646461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41280510.

The product of its digits is 311040, while the sum is 41.

The square root of 536646461 is about 23165.6310296094. The cubic root of 536646461 is about 812.6360600861.

The spelling of 536646461 in words is "five hundred thirty-six million, six hundred forty-six thousand, four hundred sixty-one".