501253252155 has 28 divisors (see below), whose sum is σ = 901843306320. Its totient is φ = 267335065872.

The previous prime is 501253252139. The next prime is 501253252177. The reversal of 501253252155 is 551252352105.

501253252155 is a `hidden beast` number, since 5 + 0 + 1 + 253 + 252 + 155 = 666.

It is not a de Polignac number, because 501253252155 - 2⁴ = 501253252139 is a prime.

It is a super-3 number, since 3×501253252155³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 68755375 + ... + 68762664.

Almost surely, 2^501253252155 is an apocalyptic number.

501253252155 is a deficient number, since it is larger than the sum of its proper divisors (400590054165).

501253252155 is an equidigital number, since it uses as much as digits as its factorization.

501253252155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137518062 (or 137518047 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 501253252155 in words is "five hundred one billion, two hundred fifty-three million, two hundred fifty-two thousand, one hundred fifty-five".