545220525553 has 8 divisors (see below), whose sum is σ = 594808599456. Its totient is φ = 495636213600.

The previous prime is 545220525547. The next prime is 545220525611. The reversal of 545220525553 is 355525022545.

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

It is not a de Polignac number, because 545220525553 - 2³³ = 536630590961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545220525503) 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, 633076 + ... + 1221157.

It is an arithmetic number, because the mean of its divisors is an integer number (74351074932).

Almost surely, 2^545220525553 is an apocalyptic number.

It is an amenable number.

545220525553 is a deficient number, since it is larger than the sum of its proper divisors (49588073903).

545220525553 is a wasteful number, since it uses less digits than its factorization.

545220525553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880975.

The product of its (nonzero) digits is 1500000, while the sum is 43.

The spelling of 545220525553 in words is "five hundred forty-five billion, two hundred twenty million, five hundred twenty-five thousand, five hundred fifty-three".