252621107 has 2 divisors, whose sum is σ = 252621108. Its totient is φ = 252621106.

The previous prime is 252621101. The next prime is 252621113. The reversal of 252621107 is 701126252.

It is a balanced prime because it is at equal distance from previous prime (252621101) and next prime (252621113).

It is a cyclic number.

It is not a de Polignac number, because 252621107 - 2⁶ = 252621043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (252621101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126310553 + 126310554.

It is an arithmetic number, because the mean of its divisors is an integer number (126310554).

Almost surely, 2^252621107 is an apocalyptic number.

252621107 is a deficient number, since it is larger than the sum of its proper divisors (1).

252621107 is an equidigital number, since it uses as much as digits as its factorization.

252621107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 252621107 is about 15894.0588585798. The cubic root of 252621107 is about 632.1544672307.

Adding to 252621107 its reverse (701126252), we get a palindrome (953747359).

The spelling of 252621107 in words is "two hundred fifty-two million, six hundred twenty-one thousand, one hundred seven".