54251223563 has 4 divisors (see below), whose sum is σ = 56121955440. Its totient is φ = 52380491688.

The previous prime is 54251223557. The next prime is 54251223617. The reversal of 54251223563 is 36532215245.

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 54251223563 - 2¹² = 54251219467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54251223503) 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, 935365895 + ... + 935365952.

It is an arithmetic number, because the mean of its divisors is an integer number (14030488860).

Almost surely, 2^54251223563 is an apocalyptic number.

54251223563 is a deficient number, since it is larger than the sum of its proper divisors (1870731877).

54251223563 is a wasteful number, since it uses less digits than its factorization.

54251223563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870731876.

The product of its digits is 216000, while the sum is 38.

The spelling of 54251223563 in words is "fifty-four billion, two hundred fifty-one million, two hundred twenty-three thousand, five hundred sixty-three".