512257542 has 16 divisors (see below), whose sum is σ = 1026226992. Its totient is φ = 170467200.

The previous prime is 512257457. The next prime is 512257639. The reversal of 512257542 is 245752215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67423 + ... + 74634.

It is an arithmetic number, because the mean of its divisors is an integer number (64139187).

Almost surely, 2^512257542 is an apocalyptic number.

512257542 is an abundant number, since it is smaller than the sum of its proper divisors (513969450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512257542 is a wasteful number, since it uses less digits than its factorization.

512257542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142663.

The product of its digits is 28000, while the sum is 33.

The square root of 512257542 is about 22633.1072104561. The cubic root of 512257542 is about 800.1341139739.

The spelling of 512257542 in words is "five hundred twelve million, two hundred fifty-seven thousand, five hundred forty-two".