545021243553 has 8 divisors (see below), whose sum is σ = 736930132416. Its totient is φ = 358229925200.

The previous prime is 545021243551. The next prime is 545021243629. The reversal of 545021243553 is 355342120545.

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

It is a cyclic number.

It is not a de Polignac number, because 545021243553 - 2¹ = 545021243551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545021243551) 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, 1279392378 + ... + 1279392803.

It is an arithmetic number, because the mean of its divisors is an integer number (92116266552).

Almost surely, 2^545021243553 is an apocalyptic number.

It is an amenable number.

545021243553 is a deficient number, since it is larger than the sum of its proper divisors (191908888863).

545021243553 is a wasteful number, since it uses less digits than its factorization.

545021243553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558785255.

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 545021243553 in words is "five hundred forty-five billion, twenty-one million, two hundred forty-three thousand, five hundred fifty-three".