545999901 has 8 divisors (see below), whose sum is σ = 728296320. Its totient is φ = 363851712.

The previous prime is 545999899. The next prime is 545999917. The reversal of 545999901 is 109999545.

It is a happy number.

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

It is not a de Polignac number, because 545999901 - 2¹ = 545999899 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545999981) 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, 28156 + ... + 43413.

It is an arithmetic number, because the mean of its divisors is an integer number (91037040).

Almost surely, 2^545999901 is an apocalyptic number.

It is an amenable number.

545999901 is a deficient number, since it is larger than the sum of its proper divisors (182296419).

545999901 is a wasteful number, since it uses less digits than its factorization.

545999901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74115.

The product of its (nonzero) digits is 656100, while the sum is 51.

The square root of 545999901 is about 23366.6407726913. The cubic root of 545999901 is about 817.3301531572.

The spelling of 545999901 in words is "five hundred forty-five million, nine hundred ninety-nine thousand, nine hundred one".