205250031245 has 8 divisors (see below), whose sum is σ = 281485757184. Its totient is φ = 140742878544.

The previous prime is 205250031229. The next prime is 205250031277. The reversal of 205250031245 is 542130052502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205250031245 - 2⁴ = 205250031229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2932143269 + ... + 2932143338.

It is an arithmetic number, because the mean of its divisors is an integer number (35185719648).

Almost surely, 2^205250031245 is an apocalyptic number.

It is an amenable number.

205250031245 is a deficient number, since it is larger than the sum of its proper divisors (76235725939).

205250031245 is an equidigital number, since it uses as much as digits as its factorization.

205250031245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864286619.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 205250031245 its reverse (542130052502), we get a palindrome (747380083747).

The spelling of 205250031245 in words is "two hundred five billion, two hundred fifty million, thirty-one thousand, two hundred forty-five".