51095663 has 4 divisors (see below), whose sum is σ = 51117000. Its totient is φ = 51074328.

The previous prime is 51095609. The next prime is 51095669. The reversal of 51095663 is 36659015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51095663 - 2⁶ = 51095599 is a prime.

It is a super-2 number, since 2×51095663² = 5221533554819138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51095669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6545 + ... + 12042.

It is an arithmetic number, because the mean of its divisors is an integer number (12779250).

Almost surely, 2^51095663 is an apocalyptic number.

51095663 is a deficient number, since it is larger than the sum of its proper divisors (21337).

51095663 is a wasteful number, since it uses less digits than its factorization.

51095663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21336.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 51095663 is about 7148.1230403512. The cubic root of 51095663 is about 371.0747010672.

The spelling of 51095663 in words is "fifty-one million, ninety-five thousand, six hundred sixty-three".