52142642 has 8 divisors (see below), whose sum is σ = 78246000. Its totient is φ = 26060644.

The previous prime is 52142639. The next prime is 52142647. The reversal of 52142642 is 24624125.

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

It is a super-2 number, since 2×52142642² = 5437710229480328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52142647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4109 + ... + 11007.

It is an arithmetic number, because the mean of its divisors is an integer number (9780750).

Almost surely, 2^52142642 is an apocalyptic number.

52142642 is a deficient number, since it is larger than the sum of its proper divisors (26103358).

52142642 is a wasteful number, since it uses less digits than its factorization.

52142642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680.

The product of its digits is 3840, while the sum is 26.

The square root of 52142642 is about 7220.9862207319. The cubic root of 52142642 is about 373.5920943828.

Adding to 52142642 its reverse (24624125), we get a palindrome (76766767).

The spelling of 52142642 in words is "fifty-two million, one hundred forty-two thousand, six hundred forty-two".