54005261563 has 4 divisors (see below), whose sum is σ = 58914830808. Its totient is φ = 49095692320.

The previous prime is 54005261537. The next prime is 54005261587. The reversal of 54005261563 is 36516250045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54005261563 - 2²⁵ = 53971707131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54005261533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2454784606 + ... + 2454784627.

It is an arithmetic number, because the mean of its divisors is an integer number (14728707702).

Almost surely, 2^54005261563 is an apocalyptic number.

54005261563 is a deficient number, since it is larger than the sum of its proper divisors (4909569245).

54005261563 is a wasteful number, since it uses less digits than its factorization.

54005261563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909569244.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 54005261563 in words is "fifty-four billion, five million, two hundred sixty-one thousand, five hundred sixty-three".