51657371 has 8 divisors (see below), whose sum is σ = 55534080. Its totient is φ = 47896488.

The previous prime is 51657329. The next prime is 51657383. The reversal of 51657371 is 17375615.

51657371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51657371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51657311) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28031 + ... + 29816.

It is an arithmetic number, because the mean of its divisors is an integer number (6941760).

Almost surely, 2^51657371 is an apocalyptic number.

51657371 is a deficient number, since it is larger than the sum of its proper divisors (3876709).

51657371 is a wasteful number, since it uses less digits than its factorization.

51657371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57913.

The product of its digits is 22050, while the sum is 35.

The square root of 51657371 is about 7187.3062408666. The cubic root of 51657371 is about 372.4295222728.

The spelling of 51657371 in words is "fifty-one million, six hundred fifty-seven thousand, three hundred seventy-one".