252122342542 has 32 divisors (see below), whose sum is σ = 446549257728. Its totient is φ = 104502527136.

The previous prime is 252122342531. The next prime is 252122342557. The reversal of 252122342542 is 245243221252.

It is a junction number, because it is equal to n+sod(n) for n = 252122342498 and 252122342507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1370748 + ... + 1543759.

It is an arithmetic number, because the mean of its divisors is an integer number (13954664304).

Almost surely, 2^252122342542 is an apocalyptic number.

252122342542 is a deficient number, since it is larger than the sum of its proper divisors (194426915186).

252122342542 is a wasteful number, since it uses less digits than its factorization.

252122342542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914720.

The product of its digits is 76800, while the sum is 34.

Adding to 252122342542 its reverse (245243221252), we get a palindrome (497365563794).

The spelling of 252122342542 in words is "two hundred fifty-two billion, one hundred twenty-two million, three hundred forty-two thousand, five hundred forty-two".