545212505256 has 64 divisors (see below), whose sum is σ = 1365147537600. Its totient is φ = 181455552000.

The previous prime is 545212505237. The next prime is 545212505287. The reversal of 545212505256 is 652505212545.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51183531 + ... + 51194181.

It is an arithmetic number, because the mean of its divisors is an integer number (21330430275).

Almost surely, 2^545212505256 is an apocalyptic number.

It is an amenable number.

545212505256 is an abundant number, since it is smaller than the sum of its proper divisors (819935032344).

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

545212505256 is a wasteful number, since it uses less digits than its factorization.

545212505256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13770 (or 13766 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 545212505256 in words is "five hundred forty-five billion, two hundred twelve million, five hundred five thousand, two hundred fifty-six".