252707237 has 4 divisors (see below), whose sum is σ = 253357260. Its totient is φ = 252057216.

The previous prime is 252707219. The next prime is 252707249. The reversal of 252707237 is 732707252.

It is a happy number.

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 78836641 + 173870596 = 8879^2 + 13186^2 .

It is a cyclic number.

It is not a de Polignac number, because 252707237 - 2¹² = 252703141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252707197 and 252707206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252707137) 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, 324428 + ... + 325205.

It is an arithmetic number, because the mean of its divisors is an integer number (63339315).

Almost surely, 2^252707237 is an apocalyptic number.

It is an amenable number.

252707237 is a deficient number, since it is larger than the sum of its proper divisors (650023).

252707237 is an equidigital number, since it uses as much as digits as its factorization.

252707237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650022.

The product of its (nonzero) digits is 41160, while the sum is 35.

The square root of 252707237 is about 15896.7681306610. The cubic root of 252707237 is about 632.2263024496.

The spelling of 252707237 in words is "two hundred fifty-two million, seven hundred seven thousand, two hundred thirty-seven".