512015515501 has 16 divisors (see below), whose sum is σ = 585948971520. Its totient is φ = 438279453360.

The previous prime is 512015515489. The next prime is 512015515537. The reversal of 512015515501 is 105515510215.

It is a happy number.

It is not a de Polignac number, because 512015515501 - 2⁵ = 512015515469 is a prime.

It is a super-2 number, since 2×512015515501² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512015513501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25403910 + ... + 25424056.

It is an arithmetic number, because the mean of its divisors is an integer number (36621810720).

Almost surely, 2^512015515501 is an apocalyptic number.

It is an amenable number.

512015515501 is a deficient number, since it is larger than the sum of its proper divisors (73933456019).

512015515501 is a wasteful number, since it uses less digits than its factorization.

512015515501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24864.

The product of its (nonzero) digits is 6250, while the sum is 31.

The spelling of 512015515501 in words is "five hundred twelve billion, fifteen million, five hundred fifteen thousand, five hundred one".