249532585 has 4 divisors (see below), whose sum is σ = 299439108. Its totient is φ = 199626064.

The previous prime is 249532561. The next prime is 249532603. The reversal of 249532585 is 585235942.

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 42863209 + 206669376 = 6547^2 + 14376^2 .

It is a cyclic number.

It is not a de Polignac number, because 249532585 - 2⁷ = 249532457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24953254 + ... + 24953263.

It is an arithmetic number, because the mean of its divisors is an integer number (74859777).

Almost surely, 2^249532585 is an apocalyptic number.

It is an amenable number.

249532585 is a deficient number, since it is larger than the sum of its proper divisors (49906523).

249532585 is an equidigital number, since it uses as much as digits as its factorization.

249532585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49906522.

The product of its digits is 432000, while the sum is 43.

The square root of 249532585 is about 15796.6004254080. The cubic root of 249532585 is about 629.5676760160.

The spelling of 249532585 in words is "two hundred forty-nine million, five hundred thirty-two thousand, five hundred eighty-five".