205852657031 has 8 divisors (see below), whose sum is σ = 235284729504. Its totient is φ = 176426722080.

The previous prime is 205852657009. The next prime is 205852657037. The reversal of 205852657031 is 130756258502.

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

It is not a de Polignac number, because 205852657031 - 2²⁶ = 205785548167 is a prime.

It is a super-2 number, since 2×205852657031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205852657037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462280 + ... + 1596861.

It is an arithmetic number, because the mean of its divisors is an integer number (29410591188).

Almost surely, 2^205852657031 is an apocalyptic number.

205852657031 is a deficient number, since it is larger than the sum of its proper divisors (29432072473).

205852657031 is an equidigital number, since it uses as much as digits as its factorization.

205852657031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068761.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 205852657031 in words is "two hundred five billion, eight hundred fifty-two million, six hundred fifty-seven thousand, thirty-one".