54545240042 has 4 divisors (see below), whose sum is σ = 81817860066. Its totient is φ = 27272620020.

The previous prime is 54545240003. The next prime is 54545240053. The reversal of 54545240042 is 24004254545.

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

It can be written as a sum of positive squares in only one way, i.e., 30203311681 + 24341928361 = 173791^2 + 156019^2 .

It is a super-2 number, since 2×54545240042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54545239984 and 54545240011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13636310009 + ... + 13636310012.

Almost surely, 2^54545240042 is an apocalyptic number.

54545240042 is a deficient number, since it is larger than the sum of its proper divisors (27272620024).

54545240042 is a wasteful number, since it uses less digits than its factorization.

54545240042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27272620023.

The product of its (nonzero) digits is 128000, while the sum is 35.

Adding to 54545240042 its reverse (24004254545), we get a palindrome (78549494587).

The spelling of 54545240042 in words is "fifty-four billion, five hundred forty-five million, two hundred forty thousand, forty-two".