51851753 has 2 divisors, whose sum is σ = 51851754. Its totient is φ = 51851752.

The previous prime is 51851749. The next prime is 51851801. The reversal of 51851753 is 35715815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36820624 + 15031129 = 6068^2 + 3877^2 .

It is a cyclic number.

It is not a de Polignac number, because 51851753 - 2² = 51851749 is a prime.

It is not a weakly prime, because it can be changed into another prime (51851743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25925876 + 25925877.

It is an arithmetic number, because the mean of its divisors is an integer number (25925877).

Almost surely, 2^51851753 is an apocalyptic number.

It is an amenable number.

51851753 is a deficient number, since it is larger than the sum of its proper divisors (1).

51851753 is an equidigital number, since it uses as much as digits as its factorization.

51851753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 35.

The square root of 51851753 is about 7200.8161343003. The cubic root of 51851753 is about 372.8960770603.

The spelling of 51851753 in words is "fifty-one million, eight hundred fifty-one thousand, seven hundred fifty-three".