545251263 has 8 divisors (see below), whose sum is σ = 727657008. Its totient is φ = 363173184.

The previous prime is 545251249. The next prime is 545251297. The reversal of 545251263 is 362152545.

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

It is not a de Polignac number, because 545251263 - 2¹⁸ = 544989119 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545250263) 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, 78006 + ... + 84707.

It is an arithmetic number, because the mean of its divisors is an integer number (90957126).

Almost surely, 2^545251263 is an apocalyptic number.

545251263 is a deficient number, since it is larger than the sum of its proper divisors (182405745).

545251263 is a wasteful number, since it uses less digits than its factorization.

545251263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163833.

The product of its digits is 36000, while the sum is 33.

The square root of 545251263 is about 23350.6159019414. The cubic root of 545251263 is about 816.9564264212.

The spelling of 545251263 in words is "five hundred forty-five million, two hundred fifty-one thousand, two hundred sixty-three".