51336402 has 16 divisors (see below), whose sum is σ = 110570880. Its totient is φ = 15795792.

The previous prime is 51336401. The next prime is 51336419. The reversal of 51336402 is 20463315.

It is a happy number.

51336402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51336401) 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, 329002 + ... + 329157.

It is an arithmetic number, because the mean of its divisors is an integer number (6910680).

Almost surely, 2^51336402 is an apocalyptic number.

51336402 is an abundant number, since it is smaller than the sum of its proper divisors (59234478).

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

51336402 is a wasteful number, since it uses less digits than its factorization.

51336402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658177.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 51336402 is about 7164.9425678089. The cubic root of 51336402 is about 371.6565653333.

Adding to 51336402 its reverse (20463315), we get a palindrome (71799717).

The spelling of 51336402 in words is "fifty-one million, three hundred thirty-six thousand, four hundred two".