252215312234 has 16 divisors (see below), whose sum is σ = 390556857600. Its totient is φ = 122030316480.

The previous prime is 252215312227. The next prime is 252215312269. The reversal of 252215312234 is 432213512252.

It is a super-2 number, since 2×252215312234² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252215312234.

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, 697217 + ... + 995259.

It is an arithmetic number, because the mean of its divisors is an integer number (24409803600).

Almost surely, 2^252215312234 is an apocalyptic number.

252215312234 is a deficient number, since it is larger than the sum of its proper divisors (138341545366).

252215312234 is a wasteful number, since it uses less digits than its factorization.

252215312234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311725.

The product of its digits is 28800, while the sum is 32.

Adding to 252215312234 its reverse (432213512252), we get a palindrome (684428824486).

The spelling of 252215312234 in words is "two hundred fifty-two billion, two hundred fifteen million, three hundred twelve thousand, two hundred thirty-four".