505172995 has 8 divisors (see below), whose sum is σ = 607055040. Its totient is φ = 403573440.

The previous prime is 505172977. The next prime is 505173029. The reversal of 505172995 is 599271505.

It is a happy number.

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

It is not a de Polignac number, because 505172995 - 2¹⁹ = 504648707 is a prime.

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, 66666 + ... + 73855.

It is an arithmetic number, because the mean of its divisors is an integer number (75881880).

Almost surely, 2^505172995 is an apocalyptic number.

505172995 is a deficient number, since it is larger than the sum of its proper divisors (101882045).

505172995 is a wasteful number, since it uses less digits than its factorization.

505172995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141245.

The product of its (nonzero) digits is 141750, while the sum is 43.

The square root of 505172995 is about 22476.0538128916. The cubic root of 505172995 is about 796.4283460699.

The spelling of 505172995 in words is "five hundred five million, one hundred seventy-two thousand, nine hundred ninety-five".