252222405 has 8 divisors (see below), whose sum is σ = 403555872. Its totient is φ = 134518608.

The previous prime is 252222379. The next prime is 252222419. The reversal of 252222405 is 504222252.

It is a happy number.

252222405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 252222405 - 2¹¹ = 252220357 is a prime.

It is a super-2 number, since 2×252222405² = 127232283167968050, which contains 22 as substring.

It is a congruent number.

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, 8407399 + ... + 8407428.

It is an arithmetic number, because the mean of its divisors is an integer number (50444484).

Almost surely, 2^252222405 is an apocalyptic number.

It is an amenable number.

252222405 is a deficient number, since it is larger than the sum of its proper divisors (151333467).

252222405 is a wasteful number, since it uses less digits than its factorization.

252222405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16814835.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 252222405 is about 15881.5114205166. The cubic root of 252222405 is about 631.8217239043.

Adding to 252222405 its reverse (504222252), we get a palindrome (756444657).

The spelling of 252222405 in words is "two hundred fifty-two million, two hundred twenty-two thousand, four hundred five".