51387753 has 16 divisors (see below), whose sum is σ = 72731520. Its totient is φ = 32161536.

The previous prime is 51387751. The next prime is 51387769. The reversal of 51387753 is 35778315.

It is not a de Polignac number, because 51387753 - 2¹ = 51387751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51387751) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23803 + ... + 25871.

It is an arithmetic number, because the mean of its divisors is an integer number (4545720).

Almost surely, 2^51387753 is an apocalyptic number.

It is an amenable number.

51387753 is a deficient number, since it is larger than the sum of its proper divisors (21343767).

51387753 is a wasteful number, since it uses less digits than its factorization.

51387753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576.

The product of its digits is 88200, while the sum is 39.

The square root of 51387753 is about 7168.5251621237. The cubic root of 51387753 is about 371.7804447874.

The spelling of 51387753 in words is "fifty-one million, three hundred eighty-seven thousand, seven hundred fifty-three".