248989577 has 2 divisors, whose sum is σ = 248989578. Its totient is φ = 248989576.

The previous prime is 248989561. The next prime is 248989589. The reversal of 248989577 is 775989842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237807241 + 11182336 = 15421^2 + 3344^2 .

It is a cyclic number.

It is not a de Polignac number, because 248989577 - 2⁴ = 248989561 is a prime.

It is not a weakly prime, because it can be changed into another prime (248919577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124494788 + 124494789.

It is an arithmetic number, because the mean of its divisors is an integer number (124494789).

Almost surely, 2^248989577 is an apocalyptic number.

It is an amenable number.

248989577 is a deficient number, since it is larger than the sum of its proper divisors (1).

248989577 is an equidigital number, since it uses as much as digits as its factorization.

248989577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 59.

The square root of 248989577 is about 15779.4035692101. The cubic root of 248989577 is about 629.1106768376.

The spelling of 248989577 in words is "two hundred forty-eight million, nine hundred eighty-nine thousand, five hundred seventy-seven".