51290453 has 2 divisors, whose sum is σ = 51290454. Its totient is φ = 51290452.

The previous prime is 51290441. The next prime is 51290501. The reversal of 51290453 is 35409215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41692849 + 9597604 = 6457^2 + 3098^2 .

It is a cyclic number.

It is not a de Polignac number, because 51290453 - 2¹² = 51286357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51290053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25645226 + 25645227.

It is an arithmetic number, because the mean of its divisors is an integer number (25645227).

Almost surely, 2^51290453 is an apocalyptic number.

It is an amenable number.

51290453 is a deficient number, since it is larger than the sum of its proper divisors (1).

51290453 is an equidigital number, since it uses as much as digits as its factorization.

51290453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 51290453 is about 7161.7353344005. The cubic root of 51290453 is about 371.5456476451.

Adding to 51290453 its reverse (35409215), we get a palindrome (86699668).

The spelling of 51290453 in words is "fifty-one million, two hundred ninety thousand, four hundred fifty-three".