248812591 has 6 divisors (see below), whose sum is σ = 251310776. Its totient is φ = 246339000.

The previous prime is 248812549. The next prime is 248812601. The reversal of 248812591 is 195218842.

It is not a de Polignac number, because 248812591 - 2²³ = 240423983 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 (248812691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1995 + ... + 22396.

Almost surely, 2^248812591 is an apocalyptic number.

248812591 is a deficient number, since it is larger than the sum of its proper divisors (2498185).

248812591 is an equidigital number, since it uses as much as digits as its factorization.

248812591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24593 (or 24492 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 248812591 is about 15773.7944388787. The cubic root of 248812591 is about 628.9615806710.

It can be divided in two parts, 24881 and 2591, that added together give a palindrome (27472).

The spelling of 248812591 in words is "two hundred forty-eight million, eight hundred twelve thousand, five hundred ninety-one".