252122255406 has 48 divisors (see below), whose sum is σ = 625496586624. Its totient is φ = 71897177232.

The previous prime is 252122255401. The next prime is 252122255443. The reversal of 252122255406 is 604552221252.

252122255406 is a `hidden beast` number, since 2 + 5 + 21 + 2 + 225 + 5 + 406 = 666.

252122255406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252122255401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1847076 + ... + 1978871.

It is an arithmetic number, because the mean of its divisors is an integer number (13031178888).

Almost surely, 2^252122255406 is an apocalyptic number.

252122255406 is an abundant number, since it is smaller than the sum of its proper divisors (373374331218).

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

252122255406 is a wasteful number, since it uses less digits than its factorization.

252122255406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826485 (or 3826482 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 252122255406 its reverse (604552221252), we get a palindrome (856674476658).

It can be divided in two parts, 252122 and 255406, that added together give a triangular number (507528 = T₁₀₀₇).

The spelling of 252122255406 in words is "two hundred fifty-two billion, one hundred twenty-two million, two hundred fifty-five thousand, four hundred six".