51677551 has 2 divisors, whose sum is σ = 51677552. Its totient is φ = 51677550.

The previous prime is 51677539. The next prime is 51677599. The reversal of 51677551 is 15577615.

51677551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51677551 - 2⁵ = 51677519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51677551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51677051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25838775 + 25838776.

It is an arithmetic number, because the mean of its divisors is an integer number (25838776).

Almost surely, 2^51677551 is an apocalyptic number.

51677551 is a deficient number, since it is larger than the sum of its proper divisors (1).

51677551 is an equidigital number, since it uses as much as digits as its factorization.

51677551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36750, while the sum is 37.

The square root of 51677551 is about 7188.7099677202. The cubic root of 51677551 is about 372.4780126055.

The spelling of 51677551 in words is "fifty-one million, six hundred seventy-seven thousand, five hundred fifty-one".