545252401555 has 4 divisors (see below), whose sum is σ = 654302881872. Its totient is φ = 436201921240.

The previous prime is 545252401553. The next prime is 545252401567. The reversal of 545252401555 is 555104252545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555104252545 = 5 ⋅111020850509.

It is not a de Polignac number, because 545252401555 - 2¹ = 545252401553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545252401553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54525240151 + ... + 54525240160.

It is an arithmetic number, because the mean of its divisors is an integer number (163575720468).

Almost surely, 2^545252401555 is an apocalyptic number.

545252401555 is a deficient number, since it is larger than the sum of its proper divisors (109050480317).

545252401555 is a wasteful number, since it uses less digits than its factorization.

545252401555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109050480316.

The product of its (nonzero) digits is 1000000, while the sum is 43.

The spelling of 545252401555 in words is "five hundred forty-five billion, two hundred fifty-two million, four hundred one thousand, five hundred fifty-five".