248878257 has 8 divisors (see below), whose sum is σ = 332006784. Its totient is φ = 165834288.

The previous prime is 248878247. The next prime is 248878271. The reversal of 248878257 is 752878842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 248878257 - 2¹⁸ = 248616113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (248878247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13918 + ... + 26295.

It is an arithmetic number, because the mean of its divisors is an integer number (41500848).

Almost surely, 2^248878257 is an apocalyptic number.

It is an amenable number.

248878257 is a deficient number, since it is larger than the sum of its proper divisors (83128527).

248878257 is a wasteful number, since it uses less digits than its factorization.

248878257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42279.

The product of its digits is 2007040, while the sum is 51.

The square root of 248878257 is about 15775.8757918538. The cubic root of 248878257 is about 629.0169071293.

The spelling of 248878257 in words is "two hundred forty-eight million, eight hundred seventy-eight thousand, two hundred fifty-seven".