51768025 has 9 divisors (see below), whose sum is σ = 64236991. Its totient is φ = 41385640.

The previous prime is 51768011. The next prime is 51768029. The reversal of 51768025 is 52086715.

The square root of 51768025 is 7195.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18636489 + 33131536 = 4317^2 + 5756^2 .

It is not a de Polignac number, because 51768025 - 2⁵ = 51767993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51768029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35256 + ... + 36694.

Almost surely, 2^51768025 is an apocalyptic number.

51768025 is the 7195-th square number.

51768025 is the 3598-th centered octagonal number.

It is an amenable number.

51768025 is a deficient number, since it is larger than the sum of its proper divisors (12468966).

51768025 is an frugal number, since it uses more digits than its factorization.

51768025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888 (or 1444 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The cubic root of 51768025 is about 372.6952567006.

The spelling of 51768025 in words is "fifty-one million, seven hundred sixty-eight thousand, twenty-five".