51563677 has 8 divisors (see below), whose sum is σ = 58697280. Its totient is φ = 44837760.

The previous prime is 51563671. The next prime is 51563693. The reversal of 51563677 is 77636515.

It is a happy number.

51563677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-51563677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51563671) 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 in 7 ways as a sum of consecutive naturals, for example, 101652 + ... + 102157.

It is an arithmetic number, because the mean of its divisors is an integer number (7337160).

Almost surely, 2^51563677 is an apocalyptic number.

It is an amenable number.

51563677 is a deficient number, since it is larger than the sum of its proper divisors (7133603).

51563677 is a wasteful number, since it uses less digits than its factorization.

51563677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203843.

The product of its digits is 132300, while the sum is 40.

The square root of 51563677 is about 7180.7852634653. The cubic root of 51563677 is about 372.2042202559.

The spelling of 51563677 in words is "fifty-one million, five hundred sixty-three thousand, six hundred seventy-seven".