252405126 has 16 divisors (see below), whose sum is σ = 560900400. Its totient is φ = 84135024.

The previous prime is 252405091. The next prime is 252405199. The reversal of 252405126 is 621504252.

252405126 is a `hidden beast` number, since 252 + 405 + 1 + 2 + 6 = 666.

252405126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 252405126.

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, 2337031 + ... + 2337138.

It is an arithmetic number, because the mean of its divisors is an integer number (35056275).

Almost surely, 2^252405126 is an apocalyptic number.

252405126 is an abundant number, since it is smaller than the sum of its proper divisors (308495274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252405126 is a wasteful number, since it uses less digits than its factorization.

252405126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674180 (or 4674174 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 252405126 is about 15887.2630116078. The cubic root of 252405126 is about 631.9742602213.

Adding to 252405126 its reverse (621504252), we get a palindrome (873909378).

The spelling of 252405126 in words is "two hundred fifty-two million, four hundred five thousand, one hundred twenty-six".