545725387 has 4 divisors (see below), whose sum is σ = 546837336. Its totient is φ = 544613440.

The previous prime is 545725379. The next prime is 545725403. The reversal of 545725387 is 783527545.

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

It is a cyclic number.

It is not a de Polignac number, because 545725387 - 2³ = 545725379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545725487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555238 + ... + 556219.

It is an arithmetic number, because the mean of its divisors is an integer number (136709334).

Almost surely, 2^545725387 is an apocalyptic number.

545725387 is a deficient number, since it is larger than the sum of its proper divisors (1111949).

545725387 is a wasteful number, since it uses less digits than its factorization.

545725387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111948.

The product of its digits is 1176000, while the sum is 46.

The square root of 545725387 is about 23360.7659763117. The cubic root of 545725387 is about 817.1931530211.

The spelling of 545725387 in words is "five hundred forty-five million, seven hundred twenty-five thousand, three hundred eighty-seven".