545940653 has 8 divisors (see below), whose sum is σ = 554873880. Its totient is φ = 537076800.

The previous prime is 545940649. The next prime is 545940671. The reversal of 545940653 is 356049545.

It can be written as a sum of positive squares in 4 ways, for example, as 78818884 + 467121769 = 8878^2 + 21613^2 .

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 545940653 - 2² = 545940649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545940653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545940613) 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, 1358 + ... + 33071.

It is an arithmetic number, because the mean of its divisors is an integer number (69359235).

Almost surely, 2^545940653 is an apocalyptic number.

It is an amenable number.

545940653 is a deficient number, since it is larger than the sum of its proper divisors (8933227).

545940653 is a wasteful number, since it uses less digits than its factorization.

545940653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34687.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 545940653 is about 23365.3729480186. The cubic root of 545940653 is about 817.3005884824.

The spelling of 545940653 in words is "five hundred forty-five million, nine hundred forty thousand, six hundred fifty-three".