195958505 has 16 divisors (see below), whose sum is σ = 245756160. Its totient is φ = 149717568.

The previous prime is 195958493. The next prime is 195958519. The reversal of 195958505 is 505859591.

It is a cyclic number.

It is not a de Polignac number, because 195958505 - 2⁴ = 195958489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195958505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124916 + ... + 126474.

It is an arithmetic number, because the mean of its divisors is an integer number (15359760).

Almost surely, 2^195958505 is an apocalyptic number.

It is an amenable number.

195958505 is a deficient number, since it is larger than the sum of its proper divisors (49797655).

195958505 is a wasteful number, since it uses less digits than its factorization.

195958505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 405000, while the sum is 47.

The square root of 195958505 is about 13998.5179572696. The cubic root of 195958505 is about 580.8375780203.

The spelling of 195958505 in words is "one hundred ninety-five million, nine hundred fifty-eight thousand, five hundred five".