51335401 has 8 divisors (see below), whose sum is σ = 55592264. Its totient is φ = 47122560.

The previous prime is 51335387. The next prime is 51335413. The reversal of 51335401 is 10453315.

It is a happy number.

51335401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 141376 + 51194025 = 376^2 + 7155^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51335401 - 2⁹ = 51334889 is a prime.

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, 8556 + ... + 13261.

It is an arithmetic number, because the mean of its divisors is an integer number (6949033).

Almost surely, 2^51335401 is an apocalyptic number.

It is an amenable number.

51335401 is a deficient number, since it is larger than the sum of its proper divisors (4256863).

51335401 is a wasteful number, since it uses less digits than its factorization.

51335401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22011.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 51335401 is about 7164.8727134542. The cubic root of 51335401 is about 371.6541496943.

Adding to 51335401 its reverse (10453315), we get a palindrome (61788716).

The spelling of 51335401 in words is "fifty-one million, three hundred thirty-five thousand, four hundred one".