53120042 has 8 divisors (see below), whose sum is σ = 79789536. Its totient is φ = 26523532.

The previous prime is 53120033. The next prime is 53120099. The reversal of 53120042 is 24002135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×53120042³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53120042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16388 + ... + 19359.

It is an arithmetic number, because the mean of its divisors is an integer number (9973692).

Almost surely, 2^53120042 is an apocalyptic number.

53120042 is a deficient number, since it is larger than the sum of its proper divisors (26669494).

53120042 is a wasteful number, since it uses less digits than its factorization.

53120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36492.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 53120042 is about 7288.3497446267. The cubic root of 53120042 is about 375.9119540712.

Adding to 53120042 its reverse (24002135), we get a palindrome (77122177).

The spelling of 53120042 in words is "fifty-three million, one hundred twenty thousand, forty-two".