248625389 has 2 divisors, whose sum is σ = 248625390. Its totient is φ = 248625388.

The previous prime is 248625383. The next prime is 248625437. The reversal of 248625389 is 983526842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135373225 + 113252164 = 11635^2 + 10642^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248625389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248625383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124312694 + 124312695.

It is an arithmetic number, because the mean of its divisors is an integer number (124312695).

Almost surely, 2^248625389 is an apocalyptic number.

It is an amenable number.

248625389 is a deficient number, since it is larger than the sum of its proper divisors (1).

248625389 is an equidigital number, since it uses as much as digits as its factorization.

248625389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 47.

The square root of 248625389 is about 15767.8593664454. The cubic root of 248625389 is about 628.8038014004.

The spelling of 248625389 in words is "two hundred forty-eight million, six hundred twenty-five thousand, three hundred eighty-nine".