51325697 has 8 divisors (see below), whose sum is σ = 52812096. Its totient is φ = 49844592.

The previous prime is 51325691. The next prime is 51325699. The reversal of 51325697 is 79652315.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51325697 - 2¹⁰ = 51324673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51325697.

It is not an unprimeable number, because it can be changed into a prime (51325691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26558 + ... + 28424.

It is an arithmetic number, because the mean of its divisors is an integer number (6601512).

Almost surely, 2^51325697 is an apocalyptic number.

It is an amenable number.

51325697 is a deficient number, since it is larger than the sum of its proper divisors (1486399).

51325697 is a wasteful number, since it uses less digits than its factorization.

51325697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647.

The product of its digits is 56700, while the sum is 38.

The square root of 51325697 is about 7164.1954886784. The cubic root of 51325697 is about 371.6307301237.

The spelling of 51325697 in words is "fifty-one million, three hundred twenty-five thousand, six hundred ninety-seven".