545864215 has 16 divisors (see below), whose sum is σ = 708069600. Its totient is φ = 401588352.

The previous prime is 545864197. The next prime is 545864273. The reversal of 545864215 is 512468545.

It is a cyclic number.

It is not a de Polignac number, because 545864215 - 2²³ = 537475607 is a prime.

It is a congruent number.

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, 1876 + ... + 33094.

It is an arithmetic number, because the mean of its divisors is an integer number (44254350).

Almost surely, 2^545864215 is an apocalyptic number.

545864215 is a deficient number, since it is larger than the sum of its proper divisors (162205385).

545864215 is a wasteful number, since it uses less digits than its factorization.

545864215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31506.

The product of its digits is 192000, while the sum is 40.

The square root of 545864215 is about 23363.7371796551. The cubic root of 545864215 is about 817.2624428598.

The spelling of 545864215 in words is "five hundred forty-five million, eight hundred sixty-four thousand, two hundred fifteen".