331252501 has 2 divisors, whose sum is σ = 331252502. Its totient is φ = 331252500.

The previous prime is 331252477. The next prime is 331252513. The reversal of 331252501 is 105252133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219928900 + 111323601 = 14830^2 + 10551^2 .

It is a cyclic number.

It is not a de Polignac number, because 331252501 - 2⁵ = 331252469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331252001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165626250 + 165626251.

It is an arithmetic number, because the mean of its divisors is an integer number (165626251).

Almost surely, 2^331252501 is an apocalyptic number.

It is an amenable number.

331252501 is a deficient number, since it is larger than the sum of its proper divisors (1).

331252501 is an equidigital number, since it uses as much as digits as its factorization.

331252501 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 331252501 is about 18200.3434308257. The cubic root of 331252501 is about 691.9154931776.

The spelling of 331252501 in words is "three hundred thirty-one million, two hundred fifty-two thousand, five hundred one".