51250041 has 12 divisors (see below), whose sum is σ = 75833940. Its totient is φ = 33333120.

The previous prime is 51250013. The next prime is 51250057. The reversal of 51250041 is 14005215.

It can be written as a sum of positive squares in 2 ways, for example, as 783225 + 50466816 = 885^2 + 7104^2 .

It is not a de Polignac number, because 51250041 - 2⁹ = 51249529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51249996 and 51250023.

It is not an unprimeable number, because it can be changed into a prime (51250061) 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, 69076 + ... + 69813.

It is an arithmetic number, because the mean of its divisors is an integer number (6319495).

Almost surely, 2^51250041 is an apocalyptic number.

It is an amenable number.

51250041 is a deficient number, since it is larger than the sum of its proper divisors (24583899).

51250041 is a wasteful number, since it uses less digits than its factorization.

51250041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138936 (or 138933 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 51250041 is about 7158.9133952018. The cubic root of 51250041 is about 371.4480411251.

Adding to 51250041 its reverse (14005215), we get a palindrome (65255256).

The spelling of 51250041 in words is "fifty-one million, two hundred fifty thousand, forty-one".