252420554224 has 20 divisors (see below), whose sum is σ = 489804730600. Its totient is φ = 126019333440.

The previous prime is 252420554219. The next prime is 252420554227. The reversal of 252420554224 is 422455024252.

It is a super-2 number, since 2×252420554224² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252420554227) 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, 11923074 + ... + 11944225.

It is an arithmetic number, because the mean of its divisors is an integer number (24490236530).

Almost surely, 2^252420554224 is an apocalyptic number.

It is an amenable number.

252420554224 is a deficient number, since it is larger than the sum of its proper divisors (237384176376).

252420554224 is a wasteful number, since it uses less digits than its factorization.

252420554224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23867968 (or 23867962 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 37.

Adding to 252420554224 its reverse (422455024252), we get a palindrome (674875578476).

The spelling of 252420554224 in words is "two hundred fifty-two billion, four hundred twenty million, five hundred fifty-four thousand, two hundred twenty-four".