2015251044041 has 4 divisors (see below), whose sum is σ = 2018649444372. Its totient is φ = 2011852643712.

The previous prime is 2015251044017. The next prime is 2015251044047. The reversal of 2015251044041 is 1404401525102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1463047489225 + 552203554816 = 1209565^2 + 743104^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015251044041 - 2⁶ = 2015251043977 is a prime.

It is a super-2 number, since 2×2015251044041² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2015251043995 and 2015251044013.

It is not an unprimeable number, because it can be changed into a prime (2015251044047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1699199276 + ... + 1699200461.

It is an arithmetic number, because the mean of its divisors is an integer number (504662361093).

Almost surely, 2^{2015251044041} is an apocalyptic number.

It is an amenable number.

2015251044041 is a deficient number, since it is larger than the sum of its proper divisors (3398400331).

2015251044041 is an equidigital number, since it uses as much as digits as its factorization.

2015251044041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398400330.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 2015251044041 its reverse (1404401525102), we get a palindrome (3419652569143).

The spelling of 2015251044041 in words is "two trillion, fifteen billion, two hundred fifty-one million, forty-four thousand, forty-one".