51625723 has 2 divisors, whose sum is σ = 51625724. Its totient is φ = 51625722.

The previous prime is 51625697. The next prime is 51625727. The reversal of 51625723 is 32752615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51625723 - 2²¹ = 49528571 is a prime.

It is not a weakly prime, because it can be changed into another prime (51625727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25812861 + 25812862.

It is an arithmetic number, because the mean of its divisors is an integer number (25812862).

Almost surely, 2^51625723 is an apocalyptic number.

51625723 is a deficient number, since it is larger than the sum of its proper divisors (1).

51625723 is an equidigital number, since it uses as much as digits as its factorization.

51625723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 51625723 is about 7185.1042441985. The cubic root of 51625723 is about 372.3534501515.

The spelling of 51625723 in words is "fifty-one million, six hundred twenty-five thousand, seven hundred twenty-three".