52521400342 has 8 divisors (see below), whose sum is σ = 78905007432. Its totient is φ = 26219731200.

The previous prime is 52521400319. The next prime is 52521400361. The reversal of 52521400342 is 24300412525.

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

It is a self number, because there is not a number n which added to its sum of digits gives 52521400342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20482884 + ... + 20485447.

It is an arithmetic number, because the mean of its divisors is an integer number (9863125929).

Almost surely, 2^52521400342 is an apocalyptic number.

52521400342 is a deficient number, since it is larger than the sum of its proper divisors (26383607090).

52521400342 is a wasteful number, since it uses less digits than its factorization.

52521400342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40968974.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 52521400342 its reverse (24300412525), we get a palindrome (76821812867).

The spelling of 52521400342 in words is "fifty-two billion, five hundred twenty-one million, four hundred thousand, three hundred forty-two".