249825642827 has 4 divisors (see below), whose sum is σ = 252401165016. Its totient is φ = 247250120640.

The previous prime is 249825642797. The next prime is 249825642851. The reversal of 249825642827 is 728246528942.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 249825642827 - 2¹² = 249825638731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249825642877) 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, 1287760949 + ... + 1287761142.

It is an arithmetic number, because the mean of its divisors is an integer number (63100291254).

Almost surely, 2^249825642827 is an apocalyptic number.

249825642827 is a deficient number, since it is larger than the sum of its proper divisors (2575522189).

249825642827 is an equidigital number, since it uses as much as digits as its factorization.

249825642827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575522188.

The product of its digits is 30965760, while the sum is 59.

The spelling of 249825642827 in words is "two hundred forty-nine billion, eight hundred twenty-five million, six hundred forty-two thousand, eight hundred twenty-seven".