51461611 has 2 divisors, whose sum is σ = 51461612. Its totient is φ = 51461610.

The previous prime is 51461593. The next prime is 51461623. The reversal of 51461611 is 11616415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51461611 - 2¹⁵ = 51428843 is a prime.

It is not a weakly prime, because it can be changed into another prime (51461651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25730805 + 25730806.

It is an arithmetic number, because the mean of its divisors is an integer number (25730806).

Almost surely, 2^51461611 is an apocalyptic number.

51461611 is a deficient number, since it is larger than the sum of its proper divisors (1).

51461611 is an equidigital number, since it uses as much as digits as its factorization.

51461611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

The square root of 51461611 is about 7173.6748602094. The cubic root of 51461611 is about 371.9584756325.

The spelling of 51461611 in words is "fifty-one million, four hundred sixty-one thousand, six hundred eleven".