54645004261 has 4 divisors (see below), whose sum is σ = 54763540524. Its totient is φ = 54526468000.

The previous prime is 54645004213. The next prime is 54645004277. The reversal of 54645004261 is 16240054645.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16240054645 = 5 ⋅3248010929.

It can be written as a sum of positive squares in 2 ways, for example, as 10976543361 + 43668460900 = 104769^2 + 208970^2 .

It is a cyclic number.

It is not a de Polignac number, because 54645004261 - 2²³ = 54636615653 is a prime.

It is a super-2 number, since 2×54645004261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54645004261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54645004061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59267440 + ... + 59268361.

It is an arithmetic number, because the mean of its divisors is an integer number (13690885131).

Almost surely, 2^54645004261 is an apocalyptic number.

It is an amenable number.

54645004261 is a deficient number, since it is larger than the sum of its proper divisors (118536263).

54645004261 is a wasteful number, since it uses less digits than its factorization.

54645004261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118536262.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 54645004261 in words is "fifty-four billion, six hundred forty-five million, four thousand, two hundred sixty-one".