252406506 has 32 divisors (see below), whose sum is σ = 551287296. Its totient is φ = 76406000.

The previous prime is 252406457. The next prime is 252406519. The reversal of 252406506 is 605604252.

It is a super-2 number, since 2×252406506² = 127418088542256072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98461 + ... + 100991.

It is an arithmetic number, because the mean of its divisors is an integer number (17227728).

Almost surely, 2^252406506 is an apocalyptic number.

252406506 is an abundant number, since it is smaller than the sum of its proper divisors (298880790).

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

252406506 is a wasteful number, since it uses less digits than its factorization.

252406506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 252406506 is about 15887.3064425660. The cubic root of 252406506 is about 631.9754119714.

The spelling of 252406506 in words is "two hundred fifty-two million, four hundred six thousand, five hundred six".