51725651 has 2 divisors, whose sum is σ = 51725652. Its totient is φ = 51725650.

The previous prime is 51725633. The next prime is 51725659. The reversal of 51725651 is 15652715.

51725651 is nontrivially palindromic in base 4.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51725651 is a prime.

It is not a weakly prime, because it can be changed into another prime (51725659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25862825 + 25862826.

It is an arithmetic number, because the mean of its divisors is an integer number (25862826).

Almost surely, 2^51725651 is an apocalyptic number.

51725651 is a deficient number, since it is larger than the sum of its proper divisors (1).

51725651 is an equidigital number, since it uses as much as digits as its factorization.

51725651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10500, while the sum is 32.

The square root of 51725651 is about 7192.0547133625. The cubic root of 51725651 is about 372.5935407623.

The spelling of 51725651 in words is "fifty-one million, seven hundred twenty-five thousand, six hundred fifty-one".