512053561 has 4 divisors (see below), whose sum is σ = 512153572. Its totient is φ = 511953552.

The previous prime is 512053559. The next prime is 512053573. The reversal of 512053561 is 165350215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 327610000 + 184443561 = 18100^2 + 13581^2 .

It is a cyclic number.

It is not a de Polignac number, because 512053561 - 2¹ = 512053559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512053501) 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, 41886 + ... + 52711.

It is an arithmetic number, because the mean of its divisors is an integer number (128038393).

Almost surely, 2^512053561 is an apocalyptic number.

It is an amenable number.

512053561 is a deficient number, since it is larger than the sum of its proper divisors (100011).

512053561 is an equidigital number, since it uses as much as digits as its factorization.

512053561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100010.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 512053561 is about 22628.6005090903. The cubic root of 512053561 is about 800.0278953815.

The spelling of 512053561 in words is "five hundred twelve million, fifty-three thousand, five hundred sixty-one".