252031513 has 2 divisors, whose sum is σ = 252031514. Its totient is φ = 252031512.

The previous prime is 252031501. The next prime is 252031541. The reversal of 252031513 is 315130252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127418944 + 124612569 = 11288^2 + 11163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252031513 is a prime.

It is not a weakly prime, because it can be changed into another prime (252031553) 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, 126015756 + 126015757.

It is an arithmetic number, because the mean of its divisors is an integer number (126015757).

Almost surely, 2^252031513 is an apocalyptic number.

It is an amenable number.

252031513 is a deficient number, since it is larger than the sum of its proper divisors (1).

252031513 is an equidigital number, since it uses as much as digits as its factorization.

252031513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 252031513 is about 15875.5004015622. The cubic root of 252031513 is about 631.6622876947.

Adding to 252031513 its reverse (315130252), we get a palindrome (567161765).

The spelling of 252031513 in words is "two hundred fifty-two million, thirty-one thousand, five hundred thirteen".