545512906 has 8 divisors (see below), whose sum is σ = 818377380. Its totient is φ = 272720448.

The previous prime is 545512889. The next prime is 545512907. The reversal of 545512906 is 609215545.

It can be written as a sum of positive squares in 2 ways, for example, as 501356881 + 44156025 = 22391^2 + 6645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×545512906² = 595168661225129672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545512907) 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, 9090 + ... + 34258.

Almost surely, 2^545512906 is an apocalyptic number.

545512906 is a deficient number, since it is larger than the sum of its proper divisors (272864474).

545512906 is a wasteful number, since it uses less digits than its factorization.

545512906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36008.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 545512906 is about 23356.2177160601. The cubic root of 545512906 is about 817.0870797939.

The spelling of 545512906 in words is "five hundred forty-five million, five hundred twelve thousand, nine hundred six".