252402001 has 2 divisors, whose sum is σ = 252402002. Its totient is φ = 252402000.

The previous prime is 252401999. The next prime is 252402011. The reversal of 252402001 is 100204252.

252402001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217592001 + 34810000 = 14751^2 + 5900^2 .

It is a cyclic number.

It is not a de Polignac number, because 252402001 - 2¹ = 252401999 is a prime.

Together with 252401999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (252402011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126201000 + 126201001.

It is an arithmetic number, because the mean of its divisors is an integer number (126201001).

Almost surely, 2^252402001 is an apocalyptic number.

It is an amenable number.

252402001 is a deficient number, since it is larger than the sum of its proper divisors (1).

252402001 is an equidigital number, since it uses as much as digits as its factorization.

252402001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 252402001 is about 15887.1646620786. The cubic root of 252402001 is about 631.9716520760.

Adding to 252402001 its reverse (100204252), we get a palindrome (352606253).

The spelling of 252402001 in words is "two hundred fifty-two million, four hundred two thousand, one".