51355523 has 8 divisors (see below), whose sum is σ = 51781392. Its totient is φ = 50931936.

The previous prime is 51355517. The next prime is 51355529. The reversal of 51355523 is 32555315.

It is an interprime number because it is at equal distance from previous prime (51355517) and next prime (51355529).

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-51355523 is a prime.

It is a super-3 number, since 3×51355523³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51355529) 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, 109736 + ... + 110202.

It is an arithmetic number, because the mean of its divisors is an integer number (6472674).

Almost surely, 2^51355523 is an apocalyptic number.

51355523 is a deficient number, since it is larger than the sum of its proper divisors (425869).

51355523 is a wasteful number, since it uses less digits than its factorization.

51355523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141.

The product of its digits is 11250, while the sum is 29.

The square root of 51355523 is about 7166.2767878446. The cubic root of 51355523 is about 371.7027025952.

The spelling of 51355523 in words is "fifty-one million, three hundred fifty-five thousand, five hundred twenty-three".