252047401 has 2 divisors, whose sum is σ = 252047402. Its totient is φ = 252047400.

The previous prime is 252047399. The next prime is 252047413. The reversal of 252047401 is 104740252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252047376 + 25 = 15876^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 252047401 - 2¹ = 252047399 is a prime.

Together with 252047399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (252047431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126023700 + 126023701.

It is an arithmetic number, because the mean of its divisors is an integer number (126023701).

Almost surely, 2^252047401 is an apocalyptic number.

It is an amenable number.

252047401 is a deficient number, since it is larger than the sum of its proper divisors (1).

252047401 is an equidigital number, since it uses as much as digits as its factorization.

252047401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 252047401 is about 15876.0007873520. Note that the first 3 decimals coincide. The cubic root of 252047401 is about 631.6755606904.

Subtracting from 252047401 its sum of digits (25), we obtain a 4-th power (252047376 = 126⁴).

Adding to 252047401 its reverse (104740252), we get a palindrome (356787653).

The spelling of 252047401 in words is "two hundred fifty-two million, forty-seven thousand, four hundred one".