248456815 has 4 divisors (see below), whose sum is σ = 298148184. Its totient is φ = 198765448.

The previous prime is 248456809. The next prime is 248456849. The reversal of 248456815 is 518654842.

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

It is a cyclic number.

It is not a de Polignac number, because 248456815 - 2⁵ = 248456783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24845677 + ... + 24845686.

It is an arithmetic number, because the mean of its divisors is an integer number (74537046).

Almost surely, 2^248456815 is an apocalyptic number.

248456815 is a deficient number, since it is larger than the sum of its proper divisors (49691369).

248456815 is an equidigital number, since it uses as much as digits as its factorization.

248456815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49691368.

The product of its digits is 307200, while the sum is 43.

The square root of 248456815 is about 15762.5129658947. The cubic root of 248456815 is about 628.6616545635.

The spelling of 248456815 in words is "two hundred forty-eight million, four hundred fifty-six thousand, eight hundred fifteen".