51020041 has 2 divisors, whose sum is σ = 51020042. Its totient is φ = 51020040.

The previous prime is 51020029. The next prime is 51020063. The reversal of 51020041 is 14002015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43837641 + 7182400 = 6621^2 + 2680^2 .

It is a cyclic number.

It is not a de Polignac number, because 51020041 - 2¹⁵ = 50987273 is a prime.

It is not a weakly prime, because it can be changed into another prime (51020341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25510020 + 25510021.

It is an arithmetic number, because the mean of its divisors is an integer number (25510021).

Almost surely, 2^51020041 is an apocalyptic number.

It is an amenable number.

51020041 is a deficient number, since it is larger than the sum of its proper divisors (1).

51020041 is an equidigital number, since it uses as much as digits as its factorization.

51020041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 51020041 is about 7142.8314413823. The cubic root of 51020041 is about 370.8915461476.

Adding to 51020041 its reverse (14002015), we get a palindrome (65022056).

The spelling of 51020041 in words is "fifty-one million, twenty thousand, forty-one".