51612775 has 6 divisors (see below), whose sum is σ = 63999872. Its totient is φ = 41290200.

The previous prime is 51612751. The next prime is 51612793. The reversal of 51612775 is 57721615.

It is a happy number.

51612775 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 51612775 - 2¹³ = 51604583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51612775.

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, 1032231 + ... + 1032280.

Almost surely, 2^51612775 is an apocalyptic number.

51612775 is a deficient number, since it is larger than the sum of its proper divisors (12387097).

51612775 is a wasteful number, since it uses less digits than its factorization.

51612775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064521 (or 2064516 counting only the distinct ones).

The product of its digits is 14700, while the sum is 34.

The square root of 51612775 is about 7184.2031569270. The cubic root of 51612775 is about 372.3223181543.

The spelling of 51612775 in words is "fifty-one million, six hundred twelve thousand, seven hundred seventy-five".