545001955 has 4 divisors (see below), whose sum is σ = 654002352. Its totient is φ = 436001560.

The previous prime is 545001937. The next prime is 545002001. The reversal of 545001955 is 559100545.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 545001955 - 2¹⁹ = 544477667 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 545001955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54500191 + ... + 54500200.

It is an arithmetic number, because the mean of its divisors is an integer number (163500588).

Almost surely, 2^545001955 is an apocalyptic number.

545001955 is a deficient number, since it is larger than the sum of its proper divisors (109000397).

545001955 is a wasteful number, since it uses less digits than its factorization.

545001955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109000396.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 545001955 is about 23345.2769313195. The cubic root of 545001955 is about 816.8318937292.

The spelling of 545001955 in words is "five hundred forty-five million, one thousand, nine hundred fifty-five".