51725573 has 2 divisors, whose sum is σ = 51725574. Its totient is φ = 51725572.

The previous prime is 51725567. The next prime is 51725627. The reversal of 51725573 is 37552715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51008164 + 717409 = 7142^2 + 847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51725573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51725563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25862786 + 25862787.

It is an arithmetic number, because the mean of its divisors is an integer number (25862787).

Almost surely, 2^51725573 is an apocalyptic number.

It is an amenable number.

51725573 is a deficient number, since it is larger than the sum of its proper divisors (1).

51725573 is an equidigital number, since it uses as much as digits as its factorization.

51725573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36750, while the sum is 35.

The square root of 51725573 is about 7192.0492907098. The cubic root of 51725573 is about 372.5933534773.

The spelling of 51725573 in words is "fifty-one million, seven hundred twenty-five thousand, five hundred seventy-three".