248915559 has 4 divisors (see below), whose sum is σ = 331887416. Its totient is φ = 165943704.

The previous prime is 248915521. The next prime is 248915573. The reversal of 248915559 is 955519842.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 248915559 - 2¹² = 248911463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248915509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41485924 + ... + 41485929.

It is an arithmetic number, because the mean of its divisors is an integer number (82971854).

Almost surely, 2^248915559 is an apocalyptic number.

248915559 is a deficient number, since it is larger than the sum of its proper divisors (82971857).

248915559 is an equidigital number, since it uses as much as digits as its factorization.

248915559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82971856.

The product of its digits is 648000, while the sum is 48.

The square root of 248915559 is about 15777.0579957101. The cubic root of 248915559 is about 629.0483313509.

The spelling of 248915559 in words is "two hundred forty-eight million, nine hundred fifteen thousand, five hundred fifty-nine".