195051505 has 16 divisors (see below), whose sum is σ = 256918464. Its totient is φ = 140978880.

The previous prime is 195051499. The next prime is 195051509. The reversal of 195051505 is 505150591.

It is not a de Polignac number, because 195051505 - 2³ = 195051497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195051509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1914 + ... + 19843.

It is an arithmetic number, because the mean of its divisors is an integer number (16057404).

Almost surely, 2^195051505 is an apocalyptic number.

It is an amenable number.

195051505 is a deficient number, since it is larger than the sum of its proper divisors (61866959).

195051505 is a wasteful number, since it uses less digits than its factorization.

195051505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21936.

The product of its (nonzero) digits is 5625, while the sum is 31.

The square root of 195051505 is about 13966.0840968397. The cubic root of 195051505 is about 579.9400502841.

The spelling of 195051505 in words is "one hundred ninety-five million, fifty-one thousand, five hundred five".