51200453 has 4 divisors (see below), whose sum is σ = 51848640. Its totient is φ = 50552268.

The previous prime is 51200441. The next prime is 51200473. The reversal of 51200453 is 35400215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35400215 = 5 ⋅7080043.

It is a cyclic number.

It is not a de Polignac number, because 51200453 - 2⁶ = 51200389 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 (51200473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323975 + ... + 324132.

It is an arithmetic number, because the mean of its divisors is an integer number (12962160).

Almost surely, 2^51200453 is an apocalyptic number.

It is an amenable number.

51200453 is a deficient number, since it is larger than the sum of its proper divisors (648187).

51200453 is an equidigital number, since it uses as much as digits as its factorization.

51200453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648186.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 51200453 is about 7155.4491822666. The cubic root of 51200453 is about 371.3282018107.

Adding to 51200453 its reverse (35400215), we get a palindrome (86600668).

The spelling of 51200453 in words is "fifty-one million, two hundred thousand, four hundred fifty-three".