248912551 has 2 divisors, whose sum is σ = 248912552. Its totient is φ = 248912550.

The previous prime is 248912549. The next prime is 248912557. The reversal of 248912551 is 155219842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248912551 - 2¹ = 248912549 is a prime.

Together with 248912549, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 248912551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248912557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124456275 + 124456276.

It is an arithmetic number, because the mean of its divisors is an integer number (124456276).

Almost surely, 2^248912551 is an apocalyptic number.

248912551 is a deficient number, since it is larger than the sum of its proper divisors (1).

248912551 is an equidigital number, since it uses as much as digits as its factorization.

248912551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 37.

The square root of 248912551 is about 15776.9626671296. The cubic root of 248912551 is about 629.0457974461.

The spelling of 248912551 in words is "two hundred forty-eight million, nine hundred twelve thousand, five hundred fifty-one".