51266755 has 4 divisors (see below), whose sum is σ = 61520112. Its totient is φ = 41013400.

The previous prime is 51266749. The next prime is 51266773. The reversal of 51266755 is 55766215.

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

It is not a de Polignac number, because 51266755 - 2⁵ = 51266723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5126671 + ... + 5126680.

It is an arithmetic number, because the mean of its divisors is an integer number (15380028).

Almost surely, 2^51266755 is an apocalyptic number.

51266755 is a deficient number, since it is larger than the sum of its proper divisors (10253357).

51266755 is a wasteful number, since it uses less digits than its factorization.

51266755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253356.

The product of its digits is 63000, while the sum is 37.

The square root of 51266755 is about 7160.0806559703. The cubic root of 51266755 is about 371.4884164279.

It can be divided in two parts, 5126 and 6755, that added together give a square (11881 = 109²).

The spelling of 51266755 in words is "fifty-one million, two hundred sixty-six thousand, seven hundred fifty-five".