252720037 has 2 divisors, whose sum is σ = 252720038. Its totient is φ = 252720036.

The previous prime is 252719993. The next prime is 252720053. The reversal of 252720037 is 730027252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219010401 + 33709636 = 14799^2 + 5806^2 .

It is a cyclic number.

It is not a de Polignac number, because 252720037 - 2¹¹ = 252717989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252719987 and 252720014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252720077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126360018 + 126360019.

It is an arithmetic number, because the mean of its divisors is an integer number (126360019).

Almost surely, 2^252720037 is an apocalyptic number.

It is an amenable number.

252720037 is a deficient number, since it is larger than the sum of its proper divisors (1).

252720037 is an equidigital number, since it uses as much as digits as its factorization.

252720037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 252720037 is about 15897.1707231193. The cubic root of 252720037 is about 632.2369766724.

Adding to 252720037 its reverse (730027252), we get a palindrome (982747289).

The spelling of 252720037 in words is "two hundred fifty-two million, seven hundred twenty thousand, thirty-seven".