51320753 has 8 divisors (see below), whose sum is σ = 56068320. Its totient is φ = 46586880.

The previous prime is 51320743. The next prime is 51320761. The reversal of 51320753 is 35702315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51320753 - 2⁸ = 51320497 is a prime.

It is a super-3 number, since 3×51320753³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51320723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5426 + ... + 11492.

It is an arithmetic number, because the mean of its divisors is an integer number (7008540).

Almost surely, 2^51320753 is an apocalyptic number.

It is an amenable number.

51320753 is a deficient number, since it is larger than the sum of its proper divisors (4747567).

51320753 is a wasteful number, since it uses less digits than its factorization.

51320753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 51320753 is about 7163.8504311578. The cubic root of 51320753 is about 371.6187971711.

The spelling of 51320753 in words is "fifty-one million, three hundred twenty thousand, seven hundred fifty-three".