51297325 has 6 divisors (see below), whose sum is σ = 63608714. Its totient is φ = 41037840.

The previous prime is 51297293. The next prime is 51297329. The reversal of 51297325 is 52379215.

It can be written as a sum of positive squares in 3 ways, for example, as 1552516 + 49744809 = 1246^2 + 7053^2 .

It is not a de Polignac number, because 51297325 - 2⁵ = 51297293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51297329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1025922 + ... + 1025971.

Almost surely, 2^51297325 is an apocalyptic number.

It is an amenable number.

51297325 is a deficient number, since it is larger than the sum of its proper divisors (12311389).

51297325 is a wasteful number, since it uses less digits than its factorization.

51297325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051903 (or 2051898 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 51297325 is about 7162.2150903195. The cubic root of 51297325 is about 371.5622403865.

The spelling of 51297325 in words is "fifty-one million, two hundred ninety-seven thousand, three hundred twenty-five".