51738541 has 4 divisors (see below), whose sum is σ = 51758172. Its totient is φ = 51718912.

The previous prime is 51738529. The next prime is 51738551. The reversal of 51738541 is 14583715.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29214025 + 22524516 = 5405^2 + 4746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51738541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51738497 and 51738506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51738551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5110 + ... + 11383.

It is an arithmetic number, because the mean of its divisors is an integer number (12939543).

Almost surely, 2^51738541 is an apocalyptic number.

It is an amenable number.

51738541 is a deficient number, since it is larger than the sum of its proper divisors (19631).

51738541 is a wasteful number, since it uses less digits than its factorization.

51738541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19630.

The product of its digits is 16800, while the sum is 34.

The square root of 51738541 is about 7192.9507853175. The cubic root of 51738541 is about 372.6244882178.

The spelling of 51738541 in words is "fifty-one million, seven hundred thirty-eight thousand, five hundred forty-one".