545602445251 has 4 divisors (see below), whose sum is σ = 545606462104. Its totient is φ = 545598428400.

The previous prime is 545602445207. The next prime is 545602445299. The reversal of 545602445251 is 152544206545.

It is a happy number.

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 545602445251 - 2¹³ = 545602437059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545602445198 and 545602445207.

It is not an unprimeable number, because it can be changed into a prime (545602443251) 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, 1797285 + ... + 2078806.

It is an arithmetic number, because the mean of its divisors is an integer number (136401615526).

Almost surely, 2^545602445251 is an apocalyptic number.

545602445251 is a deficient number, since it is larger than the sum of its proper divisors (4016853).

545602445251 is a wasteful number, since it uses less digits than its factorization.

545602445251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016852.

The product of its (nonzero) digits is 960000, while the sum is 43.

The spelling of 545602445251 in words is "five hundred forty-five billion, six hundred two million, four hundred forty-five thousand, two hundred fifty-one".