54261365565 has 16 divisors (see below), whose sum is σ = 94710747456. Its totient is φ = 26308540800.

The previous prime is 54261365461. The next prime is 54261365567. The reversal of 54261365565 is 56556316245.

It is not a de Polignac number, because 54261365565 - 2¹⁶ = 54261300029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54261365567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164428216 + ... + 164428545.

It is an arithmetic number, because the mean of its divisors is an integer number (5919421716).

Almost surely, 2^54261365565 is an apocalyptic number.

54261365565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54261365565 is a deficient number, since it is larger than the sum of its proper divisors (40449381891).

54261365565 is a wasteful number, since it uses less digits than its factorization.

54261365565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328856780.

The product of its digits is 3240000, while the sum is 48.

The spelling of 54261365565 in words is "fifty-four billion, two hundred sixty-one million, three hundred sixty-five thousand, five hundred sixty-five".