545902217 has 8 divisors (see below), whose sum is σ = 651014016. Its totient is φ = 447571872.

The previous prime is 545902187. The next prime is 545902229. The reversal of 545902217 is 712209545.

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

It is a cyclic number.

It is not a de Polignac number, because 545902217 - 2⁶ = 545902153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545902267) 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, 1695188 + ... + 1695509.

It is an arithmetic number, because the mean of its divisors is an integer number (81376752).

Almost surely, 2^545902217 is an apocalyptic number.

It is an amenable number.

545902217 is a deficient number, since it is larger than the sum of its proper divisors (105111799).

545902217 is a wasteful number, since it uses less digits than its factorization.

545902217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390727.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 545902217 is about 23364.5504343653. The cubic root of 545902217 is about 817.2814078245.

The spelling of 545902217 in words is "five hundred forty-five million, nine hundred two thousand, two hundred seventeen".