54023240042 has 4 divisors (see below), whose sum is σ = 81034860066. Its totient is φ = 27011620020.

The previous prime is 54023239973. The next prime is 54023240057. The reversal of 54023240042 is 24004232045.

It is a happy number.

It is a Cunningham number, because it is equal to 232429²+1.

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., 54023240041 + 1 = 232429^2 + 1^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54023239993 and 54023240020.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13505810009 + ... + 13505810012.

Almost surely, 2^54023240042 is an apocalyptic number.

54023240042 is a deficient number, since it is larger than the sum of its proper divisors (27011620024).

54023240042 is a wasteful number, since it uses less digits than its factorization.

54023240042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27011620023.

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 54023240042 its reverse (24004232045), we get a palindrome (78027472087).

The spelling of 54023240042 in words is "fifty-four billion, twenty-three million, two hundred forty thousand, forty-two".