252237501 has 24 divisors (see below), whose sum is σ = 374064600. Its totient is φ = 163728000.

The previous prime is 252237467. The next prime is 252237509. The reversal of 252237501 is 105732252.

It can be written as a sum of positive squares in 4 ways, for example, as 59305401 + 192932100 = 7701^2 + 13890^2 .

It is not a de Polignac number, because 252237501 - 2¹⁸ = 251975357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252237509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53175 + ... + 57723.

It is an arithmetic number, because the mean of its divisors is an integer number (15586025).

Almost surely, 2^252237501 is an apocalyptic number.

It is an amenable number.

252237501 is a deficient number, since it is larger than the sum of its proper divisors (121827099).

252237501 is a wasteful number, since it uses less digits than its factorization.

252237501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717 (or 4714 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 252237501 is about 15881.9866830318. The cubic root of 252237501 is about 631.8343289046.

Adding to 252237501 its reverse (105732252), we get a palindrome (357969753).

The spelling of 252237501 in words is "two hundred fifty-two million, two hundred thirty-seven thousand, five hundred one".