54423154521 has 12 divisors (see below), whose sum is σ = 79899932580. Its totient is φ = 35687314080.

The previous prime is 54423154519. The next prime is 54423154537. The reversal of 54423154521 is 12545132445.

54423154521 is a `hidden beast` number, since 54 + 4 + 2 + 31 + 54 + 521 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4754792025 + 49668362496 = 68955^2 + 222864^2 .

It is not a de Polignac number, because 54423154521 - 2¹ = 54423154519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54423154501) 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, 49565166 + ... + 49566263.

It is an arithmetic number, because the mean of its divisors is an integer number (6658327715).

Almost surely, 2^54423154521 is an apocalyptic number.

It is an amenable number.

54423154521 is a deficient number, since it is larger than the sum of its proper divisors (25476778059).

54423154521 is a wasteful number, since it uses less digits than its factorization.

54423154521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99131496 (or 99131493 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 54423154521 its reverse (12545132445), we get a palindrome (66968286966).

The spelling of 54423154521 in words is "fifty-four billion, four hundred twenty-three million, one hundred fifty-four thousand, five hundred twenty-one".