51483661 has 2 divisors, whose sum is σ = 51483662. Its totient is φ = 51483660.

The previous prime is 51483631. The next prime is 51483697. The reversal of 51483661 is 16638415.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49970761 + 1512900 = 7069^2 + 1230^2 .

It is a cyclic number.

It is not a de Polignac number, because 51483661 - 2⁵ = 51483629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51483631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25741830 + 25741831.

It is an arithmetic number, because the mean of its divisors is an integer number (25741831).

Almost surely, 2^51483661 is an apocalyptic number.

It is an amenable number.

51483661 is a deficient number, since it is larger than the sum of its proper divisors (1).

51483661 is an equidigital number, since it uses as much as digits as its factorization.

51483661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 51483661 is about 7175.2115648251. The cubic root of 51483661 is about 372.0115929828.

The spelling of 51483661 in words is "fifty-one million, four hundred eighty-three thousand, six hundred sixty-one".