248455547 has 4 divisors (see below), whose sum is σ = 249104640. Its totient is φ = 247806456.

The previous prime is 248455541. The next prime is 248455567. The reversal of 248455547 is 745554842.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248455547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248455498 and 248455507.

It is not an unprimeable number, because it can be changed into a prime (248455541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323972 + ... + 324737.

It is an arithmetic number, because the mean of its divisors is an integer number (62276160).

Almost surely, 2^248455547 is an apocalyptic number.

248455547 is a deficient number, since it is larger than the sum of its proper divisors (649093).

248455547 is an equidigital number, since it uses as much as digits as its factorization.

248455547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649092.

The product of its digits is 896000, while the sum is 44.

The square root of 248455547 is about 15762.4727438305. The cubic root of 248455547 is about 628.6605851029.

The spelling of 248455547 in words is "two hundred forty-eight million, four hundred fifty-five thousand, five hundred forty-seven".