248489550 has 72 divisors (see below), whose sum is σ = 675753624. Its totient is φ = 65455680.

The previous prime is 248489537. The next prime is 248489551. The reversal of 248489550 is 55984842.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 248489496 and 248489505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248489551) 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 35 ways as a sum of consecutive naturals, for example, 34024 + ... + 40676.

It is an arithmetic number, because the mean of its divisors is an integer number (9385467).

Almost surely, 2^248489550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248489550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337876812).

248489550 is an abundant number, since it is smaller than the sum of its proper divisors (427264074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248489550 is a wasteful number, since it uses less digits than its factorization.

248489550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754 (or 6746 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 248489550 is about 15763.5513130766. The cubic root of 248489550 is about 628.6892627624.

The spelling of 248489550 in words is "two hundred forty-eight million, four hundred eighty-nine thousand, five hundred fifty".