51367013 has 16 divisors (see below), whose sum is σ = 57816000. Its totient is φ = 45349632.

The previous prime is 51367003. The next prime is 51367021. The reversal of 51367013 is 31076315.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51367013 - 2¹² = 51362917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51367003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34478 + ... + 35936.

It is an arithmetic number, because the mean of its divisors is an integer number (3613500).

Almost surely, 2^51367013 is an apocalyptic number.

It is an amenable number.

51367013 is a deficient number, since it is larger than the sum of its proper divisors (6448987).

51367013 is a wasteful number, since it uses less digits than its factorization.

51367013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 51367013 is about 7167.0784145285. The cubic root of 51367013 is about 371.7304214287.

The spelling of 51367013 in words is "fifty-one million, three hundred sixty-seven thousand, thirteen".