51836437 has 2 divisors, whose sum is σ = 51836438. Its totient is φ = 51836436.

The previous prime is 51836429. The next prime is 51836443. The reversal of 51836437 is 73463815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51279921 + 556516 = 7161^2 + 746^2 .

It is a cyclic number.

It is not a de Polignac number, because 51836437 - 2³ = 51836429 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51836396 and 51836405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51834437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25918218 + 25918219.

It is an arithmetic number, because the mean of its divisors is an integer number (25918219).

Almost surely, 2^51836437 is an apocalyptic number.

It is an amenable number.

51836437 is a deficient number, since it is larger than the sum of its proper divisors (1).

51836437 is an equidigital number, since it uses as much as digits as its factorization.

51836437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 51836437 is about 7199.7525651928. The cubic root of 51836437 is about 372.8593580269.

The spelling of 51836437 in words is "fifty-one million, eight hundred thirty-six thousand, four hundred thirty-seven".