252524401 has 4 divisors (see below), whose sum is σ = 252574452. Its totient is φ = 252474352.

The previous prime is 252524399. The next prime is 252524449. The reversal of 252524401 is 104425252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 140185600 + 112338801 = 11840^2 + 10599^2 .

It is a cyclic number.

It is not a de Polignac number, because 252524401 - 2¹ = 252524399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252504401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16486 + ... + 27871.

It is an arithmetic number, because the mean of its divisors is an integer number (63143613).

Almost surely, 2^252524401 is an apocalyptic number.

It is an amenable number.

252524401 is a deficient number, since it is larger than the sum of its proper divisors (50051).

252524401 is an equidigital number, since it uses as much as digits as its factorization.

252524401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50050.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 252524401 is about 15891.0163614540. The cubic root of 252524401 is about 632.0737918231.

Adding to 252524401 its reverse (104425252), we get a palindrome (356949653).

The spelling of 252524401 in words is "two hundred fifty-two million, five hundred twenty-four thousand, four hundred one".