248506553 has 4 divisors (see below), whose sum is σ = 248602740. Its totient is φ = 248410368.

The previous prime is 248506547. The next prime is 248506579. The reversal of 248506553 is 355605842.

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

It can be written as a sum of positive squares in 2 ways, for example, as 138109504 + 110397049 = 11752^2 + 10507^2 .

It is a cyclic number.

It is not a de Polignac number, because 248506553 - 2¹⁴ = 248490169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248506523) 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, 44108 + ... + 49421.

It is an arithmetic number, because the mean of its divisors is an integer number (62150685).

Almost surely, 2^248506553 is an apocalyptic number.

It is an amenable number.

248506553 is a deficient number, since it is larger than the sum of its proper divisors (96187).

248506553 is an equidigital number, since it uses as much as digits as its factorization.

248506553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96186.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 248506553 is about 15764.0906176030. The cubic root of 248506553 is about 628.7036018761.

The spelling of 248506553 in words is "two hundred forty-eight million, five hundred six thousand, five hundred fifty-three".