2051365451 has 2 divisors, whose sum is σ = 2051365452. Its totient is φ = 2051365450.

The previous prime is 2051365399. The next prime is 2051365471. The reversal of 2051365451 is 1545631502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051365451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2051365471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025682725 + 1025682726.

It is an arithmetic number, because the mean of its divisors is an integer number (1025682726).

Almost surely, 2^2051365451 is an apocalyptic number.

2051365451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051365451 is an equidigital number, since it uses as much as digits as its factorization.

2051365451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 2051365451 is about 45292.0020643822. The cubic root of 2051365451 is about 1270.6160755336.

Adding to 2051365451 its reverse (1545631502), we get a palindrome (3596996953).

The spelling of 2051365451 in words is "two billion, fifty-one million, three hundred sixty-five thousand, four hundred fifty-one".