49451 has 2 divisors, whose sum is σ = 49452. Its totient is φ = 49450.

The previous prime is 49433. The next prime is 49459. The reversal of 49451 is 15494.

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-49451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24725 + 24726.

It is an arithmetic number, because the mean of its divisors is an integer number (24726).

2⁴⁹⁴⁵¹ is an apocalyptic number.

49451 is a deficient number, since it is larger than the sum of its proper divisors (1).

49451 is an equidigital number, since it uses as much as digits as its factorization.

49451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 49451 is about 222.3758080368. The cubic root of 49451 is about 36.7049829029.

It can be divided in two parts, 494 and 51, that added together give a palindrome (545).

The spelling of 49451 in words is "forty-nine thousand, four hundred fifty-one".