252423051434 has 16 divisors (see below), whose sum is σ = 387327771648. Its totient is φ = 123322643472.

The previous prime is 252423051409. The next prime is 252423051589. The reversal of 252423051434 is 434150324252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 252423051394 and 252423051403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2154929 + ... + 2269044.

It is an arithmetic number, because the mean of its divisors is an integer number (24207985728).

Almost surely, 2^252423051434 is an apocalyptic number.

252423051434 is a deficient number, since it is larger than the sum of its proper divisors (134904720214).

252423051434 is a wasteful number, since it uses less digits than its factorization.

252423051434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424629.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 252423051434 its reverse (434150324252), we get a palindrome (686573375686).

The spelling of 252423051434 in words is "two hundred fifty-two billion, four hundred twenty-three million, fifty-one thousand, four hundred thirty-four".