51301413 has 6 divisors (see below), whose sum is σ = 74102054. Its totient is φ = 34200936.

The previous prime is 51301381. The next prime is 51301421. The reversal of 51301413 is 31410315.

It can be written as a sum of positive squares in only one way, i.e., 39727809 + 11573604 = 6303^2 + 3402^2 .

It is not a de Polignac number, because 51301413 - 2⁵ = 51301381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51301433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2850070 + ... + 2850087.

Almost surely, 2^51301413 is an apocalyptic number.

It is an amenable number.

51301413 is a deficient number, since it is larger than the sum of its proper divisors (22800641).

51301413 is a wasteful number, since it uses less digits than its factorization.

51301413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5700163 (or 5700160 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 51301413 is about 7162.5004712042. The cubic root of 51301413 is about 371.5721103364.

Adding to 51301413 its reverse (31410315), we get a palindrome (82711728).

The spelling of 51301413 in words is "fifty-one million, three hundred one thousand, four hundred thirteen".