52071142 has 8 divisors (see below), whose sum is σ = 78624432. Its totient is φ = 25863000.

The previous prime is 52071139. The next prime is 52071157. The reversal of 52071142 is 24117025.

It is a happy number.

52071142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×52071142² = 5422807658368328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85909 + ... + 86512.

It is an arithmetic number, because the mean of its divisors is an integer number (9828054).

Almost surely, 2^52071142 is an apocalyptic number.

52071142 is a deficient number, since it is larger than the sum of its proper divisors (26553290).

52071142 is a wasteful number, since it uses less digits than its factorization.

52071142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172574.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 52071142 is about 7216.0336750877. The cubic root of 52071142 is about 373.4212549798.

Adding to 52071142 its reverse (24117025), we get a palindrome (76188167).

The spelling of 52071142 in words is "fifty-two million, seventy-one thousand, one hundred forty-two".