252556001 has 2 divisors, whose sum is σ = 252556002. Its totient is φ = 252556000.

The previous prime is 252555991. The next prime is 252556013. The reversal of 252556001 is 100655252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189337600 + 63218401 = 13760^2 + 7951^2 .

It is a cyclic number.

It is not a de Polignac number, because 252556001 - 2¹⁰ = 252554977 is a prime.

It is a super-2 number, since 2×252556001² = 127569067282224002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (252556081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126278000 + 126278001.

It is an arithmetic number, because the mean of its divisors is an integer number (126278001).

Almost surely, 2^252556001 is an apocalyptic number.

It is an amenable number.

252556001 is a deficient number, since it is larger than the sum of its proper divisors (1).

252556001 is an equidigital number, since it uses as much as digits as its factorization.

252556001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 252556001 is about 15892.0106028155. The cubic root of 252556001 is about 632.1001558743.

The spelling of 252556001 in words is "two hundred fifty-two million, five hundred fifty-six thousand, one".