51215353 has 8 divisors (see below), whose sum is σ = 59356800. Its totient is φ = 43280160.

The previous prime is 51215347. The next prime is 51215357. The reversal of 51215353 is 35351215.

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

It is not a de Polignac number, because 51215353 - 2¹³ = 51207161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51215357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51028 + ... + 52021.

It is an arithmetic number, because the mean of its divisors is an integer number (7419600).

Almost surely, 2^51215353 is an apocalyptic number.

It is an amenable number.

51215353 is a deficient number, since it is larger than the sum of its proper divisors (8141447).

51215353 is a wasteful number, since it uses less digits than its factorization.

51215353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103127.

The product of its digits is 2250, while the sum is 25.

The square root of 51215353 is about 7156.4902710756. The cubic root of 51215353 is about 371.3642187680.

Adding to 51215353 its reverse (35351215), we get a palindrome (86566568).

The spelling of 51215353 in words is "fifty-one million, two hundred fifteen thousand, three hundred fifty-three".