205414511252 has 24 divisors (see below), whose sum is σ = 367298426880. Its totient is φ = 100474182560.

The previous prime is 205414511227. The next prime is 205414511293. The reversal of 205414511252 is 252115414502.

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, 138074 + ... + 655662.

It is an arithmetic number, because the mean of its divisors is an integer number (15304101120).

Almost surely, 2^205414511252 is an apocalyptic number.

It is an amenable number.

205414511252 is a deficient number, since it is larger than the sum of its proper divisors (161883915628).

205414511252 is a wasteful number, since it uses less digits than its factorization.

205414511252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519751 (or 519749 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 205414511252 its reverse (252115414502), we get a palindrome (457529925754).

The spelling of 205414511252 in words is "two hundred five billion, four hundred fourteen million, five hundred eleven thousand, two hundred fifty-two".