501233155 has 16 divisors (see below), whose sum is σ = 616597344. Its totient is φ = 390942720.

The previous prime is 501233153. The next prime is 501233177. The reversal of 501233155 is 551332105.

It is not a de Polignac number, because 501233155 - 2¹ = 501233153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501233153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135997 + ... + 139633.

It is an arithmetic number, because the mean of its divisors is an integer number (38537334).

Almost surely, 2^501233155 is an apocalyptic number.

501233155 is a deficient number, since it is larger than the sum of its proper divisors (115364189).

501233155 is a wasteful number, since it uses less digits than its factorization.

501233155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 501233155 is about 22388.2369783777. The cubic root of 501233155 is about 794.3524941404.

The spelling of 501233155 in words is "five hundred one million, two hundred thirty-three thousand, one hundred fifty-five".