51102775 has 6 divisors (see below), whose sum is σ = 63367472. Its totient is φ = 40882200.

The previous prime is 51102767. The next prime is 51102817. The reversal of 51102775 is 57720115.

51102775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51102775 - 2³ = 51102767 is a prime.

It is a super-2 number, since 2×51102775² = 5222987225401250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1022031 + ... + 1022080.

Almost surely, 2^51102775 is an apocalyptic number.

51102775 is a deficient number, since it is larger than the sum of its proper divisors (12264697).

51102775 is a wasteful number, since it uses less digits than its factorization.

51102775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044121 (or 2044116 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 51102775 is about 7148.6204962916. The cubic root of 51102775 is about 371.0919168848.

The spelling of 51102775 in words is "fifty-one million, one hundred two thousand, seven hundred seventy-five".