205525465 has 8 divisors (see below), whose sum is σ = 255135240. Its totient is φ = 158750592.

The previous prime is 205525429. The next prime is 205525469. The reversal of 205525465 is 564525502.

It can be written as a sum of positive squares in 4 ways, for example, as 12787776 + 192737689 = 3576^2 + 13883^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205525465 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205525465.

It is not an unprimeable number, because it can be changed into a prime (205525469) 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, 708564 + ... + 708853.

It is an arithmetic number, because the mean of its divisors is an integer number (31891905).

Almost surely, 2^205525465 is an apocalyptic number.

It is an amenable number.

205525465 is a deficient number, since it is larger than the sum of its proper divisors (49609775).

205525465 is a wasteful number, since it uses less digits than its factorization.

205525465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417451.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 205525465 is about 14336.1593531880. The cubic root of 205525465 is about 590.1402185166.

The spelling of 205525465 in words is "two hundred five million, five hundred twenty-five thousand, four hundred sixty-five".