51061025 has 12 divisors (see below), whose sum is σ = 65499900. Its totient is φ = 39439680.

The previous prime is 51061009. The next prime is 51061027. The reversal of 51061025 is 52016015.

It can be written as a sum of positive squares in 6 ways, for example, as 877969 + 50183056 = 937^2 + 7084^2 .

It is not a de Polignac number, because 51061025 - 2⁴ = 51061009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51060988 and 51061006.

It is not an unprimeable number, because it can be changed into a prime (51061027) 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, 34490 + ... + 35939.

It is an arithmetic number, because the mean of its divisors is an integer number (5458325).

Almost surely, 2^51061025 is an apocalyptic number.

It is an amenable number.

51061025 is a deficient number, since it is larger than the sum of its proper divisors (14438875).

51061025 is a wasteful number, since it uses less digits than its factorization.

51061025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70468 (or 70463 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 51061025 is about 7145.6997557972. The cubic root of 51061025 is about 370.9908309937.

The spelling of 51061025 in words is "fifty-one million, sixty-one thousand, twenty-five".