51826013 has 16 divisors (see below), whose sum is σ = 56324160. Its totient is φ = 47506176.

The previous prime is 51826003. The next prime is 51826037. The reversal of 51826013 is 31062815.

It is a cyclic number.

It is not a de Polignac number, because 51826013 - 2⁸ = 51825757 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 (51826003) 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, 163331 + ... + 163647.

It is an arithmetic number, because the mean of its divisors is an integer number (3520260).

Almost surely, 2^51826013 is an apocalyptic number.

It is an amenable number.

51826013 is a deficient number, since it is larger than the sum of its proper divisors (4498147).

51826013 is a wasteful number, since it uses less digits than its factorization.

51826013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 51826013 is about 7199.0286150286. The cubic root of 51826013 is about 372.8343630830.

Adding to 51826013 its reverse (31062815), we get a palindrome (82888828).

The spelling of 51826013 in words is "fifty-one million, eight hundred twenty-six thousand, thirteen".