252226407 has 8 divisors (see below), whose sum is σ = 337150576. Its totient is φ = 167726592.

The previous prime is 252226379. The next prime is 252226409. The reversal of 252226407 is 704622252.

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

It is not a de Polignac number, because 252226407 - 2¹⁵ = 252193639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252226409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104698 + ... + 107079.

It is an arithmetic number, because the mean of its divisors is an integer number (42143822).

Almost surely, 2^252226407 is an apocalyptic number.

252226407 is a deficient number, since it is larger than the sum of its proper divisors (84924169).

252226407 is a wasteful number, since it uses less digits than its factorization.

252226407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212177.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 252226407 is about 15881.6374155816. The cubic root of 252226407 is about 631.8250655810.

Adding to 252226407 its reverse (704622252), we get a palindrome (956848659).

The spelling of 252226407 in words is "two hundred fifty-two million, two hundred twenty-six thousand, four hundred seven".