51457451 has 2 divisors, whose sum is σ = 51457452. Its totient is φ = 51457450.

The previous prime is 51457423. The next prime is 51457537. The reversal of 51457451 is 15475415.

51457451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51457451 is a prime.

It is not a weakly prime, because it can be changed into another prime (51457411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25728725 + 25728726.

It is an arithmetic number, because the mean of its divisors is an integer number (25728726).

Almost surely, 2^51457451 is an apocalyptic number.

51457451 is a deficient number, since it is larger than the sum of its proper divisors (1).

51457451 is an equidigital number, since it uses as much as digits as its factorization.

51457451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14000, while the sum is 32.

The square root of 51457451 is about 7173.3849053289. The cubic root of 51457451 is about 371.9484526987.

The spelling of 51457451 in words is "fifty-one million, four hundred fifty-seven thousand, four hundred fifty-one".