54105242523 has 4 divisors (see below), whose sum is σ = 72140323368. Its totient is φ = 36070161680.

The previous prime is 54105242519. The next prime is 54105242533. The reversal of 54105242523 is 32524250145.

It is a happy number.

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 54105242523 - 2² = 54105242519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54105242533) 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, 9017540418 + ... + 9017540423.

It is an arithmetic number, because the mean of its divisors is an integer number (18035080842).

Almost surely, 2^54105242523 is an apocalyptic number.

54105242523 is a deficient number, since it is larger than the sum of its proper divisors (18035080845).

54105242523 is a wasteful number, since it uses less digits than its factorization.

54105242523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18035080844.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 54105242523 its reverse (32524250145), we get a palindrome (86629492668).

The spelling of 54105242523 in words is "fifty-four billion, one hundred five million, two hundred forty-two thousand, five hundred twenty-three".