51021040041 has 12 divisors (see below), whose sum is σ = 73708985220. Its totient is φ = 34008521760.

The previous prime is 51021040013. The next prime is 51021040123. The reversal of 51021040041 is 14004012015.

51021040041 is a `hidden beast` number, since 5 + 10 + 210 + 400 + 41 = 666.

51021040041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2829814416 + 48191225625 = 53196^2 + 219525^2 .

It is not a de Polignac number, because 51021040041 - 2⁶ = 51021039977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51021039996 and 51021040023.

It is not an unprimeable number, because it can be changed into a prime (51021048041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399646 + ... + 511623.

It is an arithmetic number, because the mean of its divisors is an integer number (6142415435).

Almost surely, 2^51021040041 is an apocalyptic number.

It is an amenable number.

51021040041 is a deficient number, since it is larger than the sum of its proper divisors (22687945179).

51021040041 is a wasteful number, since it uses less digits than its factorization.

51021040041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917496 (or 917493 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 51021040041 its reverse (14004012015), we get a palindrome (65025052056).

The spelling of 51021040041 in words is "fifty-one billion, twenty-one million, forty thousand, forty-one".