523480249 has 4 divisors (see below), whose sum is σ = 524114064. Its totient is φ = 522846436.

The previous prime is 523480211. The next prime is 523480259. The reversal of 523480249 is 942084325.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 523480249 - 2⁷ = 523480121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523480259) 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, 315667 + ... + 317320.

It is an arithmetic number, because the mean of its divisors is an integer number (131028516).

Almost surely, 2^523480249 is an apocalyptic number.

It is an amenable number.

523480249 is a deficient number, since it is larger than the sum of its proper divisors (633815).

523480249 is an equidigital number, since it uses as much as digits as its factorization.

523480249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633814.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 523480249 is about 22879.6907540290. The cubic root of 523480249 is about 805.9351548831.

The spelling of 523480249 in words is "five hundred twenty-three million, four hundred eighty thousand, two hundred forty-nine".