54242321553 has 12 divisors (see below), whose sum is σ = 89542880128. Its totient is φ = 30995612280.

The previous prime is 54242321533. The next prime is 54242321587. The reversal of 54242321553 is 35512324245.

54242321553 is a `hidden beast` number, since 5 + 42 + 42 + 3 + 21 + 553 = 666.

It is not a de Polignac number, because 54242321553 - 2⁸ = 54242321297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54242321533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 430494553 + ... + 430494678.

Almost surely, 2^54242321553 is an apocalyptic number.

It is an amenable number.

54242321553 is a deficient number, since it is larger than the sum of its proper divisors (35300558575).

54242321553 is a wasteful number, since it uses less digits than its factorization.

54242321553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860989244 (or 860989241 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

Adding to 54242321553 its reverse (35512324245), we get a palindrome (89754645798).

The spelling of 54242321553 in words is "fifty-four billion, two hundred forty-two million, three hundred twenty-one thousand, five hundred fifty-three".