512256542 has 16 divisors (see below), whose sum is σ = 899573472. Its totient is φ = 214183680.

The previous prime is 512256541. The next prime is 512256553. The reversal of 512256542 is 245652215.

It is a junction number, because it is equal to n+sod(n) for n = 512256499 and 512256508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512256541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445643 + ... + 446790.

It is an arithmetic number, because the mean of its divisors is an integer number (56223342).

Almost surely, 2^512256542 is an apocalyptic number.

512256542 is a deficient number, since it is larger than the sum of its proper divisors (387316930).

512256542 is a wasteful number, since it uses less digits than its factorization.

512256542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892483.

The product of its digits is 24000, while the sum is 32.

The square root of 512256542 is about 22633.0851189139. The cubic root of 512256542 is about 800.1335933148.

The spelling of 512256542 in words is "five hundred twelve million, two hundred fifty-six thousand, five hundred forty-two".