51052451 has 2 divisors, whose sum is σ = 51052452. Its totient is φ = 51052450.

The previous prime is 51052429. The next prime is 51052453. The reversal of 51052451 is 15425015.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51052451 is a prime.

Together with 51052453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51052453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25526225 + 25526226.

It is an arithmetic number, because the mean of its divisors is an integer number (25526226).

Almost surely, 2^51052451 is an apocalyptic number.

51052451 is a deficient number, since it is larger than the sum of its proper divisors (1).

51052451 is an equidigital number, since it uses as much as digits as its factorization.

51052451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 51052451 is about 7145.0997893661. The cubic root of 51052451 is about 370.9700646431.

Adding to 51052451 its reverse (15425015), we get a palindrome (66477466).

The spelling of 51052451 in words is "fifty-one million, fifty-two thousand, four hundred fifty-one".