248405566 has 8 divisors (see below), whose sum is σ = 388808784. Its totient is φ = 118802640.

The previous prime is 248405537. The next prime is 248405609. The reversal of 248405566 is 665504842.

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

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, 2700015 + ... + 2700106.

It is an arithmetic number, because the mean of its divisors is an integer number (48601098).

Almost surely, 2^248405566 is an apocalyptic number.

248405566 is a deficient number, since it is larger than the sum of its proper divisors (140403218).

248405566 is a wasteful number, since it uses less digits than its factorization.

248405566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400146.

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 248405566 is about 15760.8872212195. The cubic root of 248405566 is about 628.6184270693.

The spelling of 248405566 in words is "two hundred forty-eight million, four hundred five thousand, five hundred sixty-six".