512231505 has 32 divisors (see below), whose sum is σ = 905520384. Its totient is φ = 245938176.

The previous prime is 512231501. The next prime is 512231519. The reversal of 512231505 is 505132215.

It is a happy number.

It is not a de Polignac number, because 512231505 - 2² = 512231501 is a prime.

It is a super-2 number, since 2×512231505² = 524762229429130050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (512231501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37804 + ... + 49533.

It is an arithmetic number, because the mean of its divisors is an integer number (28297512).

Almost surely, 2^512231505 is an apocalyptic number.

It is an amenable number.

512231505 is a deficient number, since it is larger than the sum of its proper divisors (393288879).

512231505 is a wasteful number, since it uses less digits than its factorization.

512231505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87385.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 512231505 is about 22632.5320059422. The cubic root of 512231505 is about 800.1205573523.

The spelling of 512231505 in words is "five hundred twelve million, two hundred thirty-one thousand, five hundred five".