248753649 has 4 divisors (see below), whose sum is σ = 331671536. Its totient is φ = 165835764.

The previous prime is 248753629. The next prime is 248753651. The reversal of 248753649 is 946357842.

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.

It is not a de Polignac number, because 248753649 - 2²⁵ = 215199217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248753598 and 248753607.

It is not an unprimeable number, because it can be changed into a prime (248753629) 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, 41458939 + ... + 41458944.

It is an arithmetic number, because the mean of its divisors is an integer number (82917884).

Almost surely, 2^248753649 is an apocalyptic number.

It is an amenable number.

248753649 is a deficient number, since it is larger than the sum of its proper divisors (82917887).

248753649 is an equidigital number, since it uses as much as digits as its factorization.

248753649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82917886.

The product of its digits is 1451520, while the sum is 48.

The square root of 248753649 is about 15771.9259762402. The cubic root of 248753649 is about 628.9119111840.

The spelling of 248753649 in words is "two hundred forty-eight million, seven hundred fifty-three thousand, six hundred forty-nine".