51245437 has 2 divisors, whose sum is σ = 51245438. Its totient is φ = 51245436.

The previous prime is 51245431. The next prime is 51245443. The reversal of 51245437 is 73454215.

It is a balanced prime because it is at equal distance from previous prime (51245431) and next prime (51245443).

It can be written as a sum of positive squares in only one way, i.e., 41139396 + 10106041 = 6414^2 + 3179^2 .

It is a cyclic number.

It is not a de Polignac number, because 51245437 - 2⁷ = 51245309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51245399 and 51245408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51245431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25622718 + 25622719.

It is an arithmetic number, because the mean of its divisors is an integer number (25622719).

Almost surely, 2^51245437 is an apocalyptic number.

It is an amenable number.

51245437 is a deficient number, since it is larger than the sum of its proper divisors (1).

51245437 is an equidigital number, since it uses as much as digits as its factorization.

51245437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 31.

The square root of 51245437 is about 7158.5918308002. The cubic root of 51245437 is about 371.4369178950.

The spelling of 51245437 in words is "fifty-one million, two hundred forty-five thousand, four hundred thirty-seven".