51636354 has 32 divisors (see below), whose sum is σ = 128756736. Its totient is φ = 13411920.

The previous prime is 51636353. The next prime is 51636379. The reversal of 51636354 is 45363615.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51636353) 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, 55422 + ... + 56345.

It is an arithmetic number, because the mean of its divisors is an integer number (4023648).

Almost surely, 2^51636354 is an apocalyptic number.

51636354 is an abundant number, since it is smaller than the sum of its proper divisors (77120382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51636354 is a wasteful number, since it uses less digits than its factorization.

51636354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111790.

The product of its digits is 32400, while the sum is 33.

The square root of 51636354 is about 7185.8440005333. The cubic root of 51636354 is about 372.3790072938.

Adding to 51636354 its reverse (45363615), we get a palindrome (96999969).

The spelling of 51636354 in words is "fifty-one million, six hundred thirty-six thousand, three hundred fifty-four".