205444201025 has 12 divisors (see below), whose sum is σ = 291143782272. Its totient is φ = 140876023440.

The previous prime is 205444201019. The next prime is 205444201033. The reversal of 205444201025 is 520102444502.

It is not a de Polignac number, because 205444201025 - 2⁸ = 205444200769 is a prime.

It is a super-2 number, since 2×205444201025² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586983257 + ... + 586983606.

It is an arithmetic number, because the mean of its divisors is an integer number (24261981856).

Almost surely, 2^205444201025 is an apocalyptic number.

205444201025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205444201025 is a deficient number, since it is larger than the sum of its proper divisors (85699581247).

205444201025 is a wasteful number, since it uses less digits than its factorization.

205444201025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173966880 (or 1173966875 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 205444201025 its reverse (520102444502), we get a palindrome (725546645527).

The spelling of 205444201025 in words is "two hundred five billion, four hundred forty-four million, two hundred one thousand, twenty-five".