505072158 has 16 divisors (see below), whose sum is σ = 1010442000. Its totient is φ = 168307776.

The previous prime is 505072151. The next prime is 505072171. The reversal of 505072158 is 851270505.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505072151) 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, 13968 + ... + 34716.

It is an arithmetic number, because the mean of its divisors is an integer number (63152625).

Almost surely, 2^505072158 is an apocalyptic number.

505072158 is an abundant number, since it is smaller than the sum of its proper divisors (505369842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505072158 is a wasteful number, since it uses less digits than its factorization.

505072158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24811.

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 505072158 is about 22473.8104913252. The cubic root of 505072158 is about 796.3753511619.

The spelling of 505072158 in words is "five hundred five million, seventy-two thousand, one hundred fifty-eight".