248256433 has 4 divisors (see below), whose sum is σ = 248793088. Its totient is φ = 247719780.

The previous prime is 248256409. The next prime is 248256439. The reversal of 248256433 is 334652842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 334652842 = 2 ⋅167326421.

It is a cyclic number.

It is not a de Polignac number, because 248256433 - 2²¹ = 246159281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248256392 and 248256401.

It is not an unprimeable number, because it can be changed into a prime (248256439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267633 + ... + 268558.

It is an arithmetic number, because the mean of its divisors is an integer number (62198272).

Almost surely, 2^248256433 is an apocalyptic number.

It is an amenable number.

248256433 is a deficient number, since it is larger than the sum of its proper divisors (536655).

248256433 is an equidigital number, since it uses as much as digits as its factorization.

248256433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536654.

The product of its digits is 138240, while the sum is 37.

The square root of 248256433 is about 15756.1554003507. The cubic root of 248256433 is about 628.4926025685.

The spelling of 248256433 in words is "two hundred forty-eight million, two hundred fifty-six thousand, four hundred thirty-three".