5405251 has 2 divisors, whose sum is σ = 5405252. Its totient is φ = 5405250.

The previous prime is 5405249. The next prime is 5405261. The reversal of 5405251 is 1525045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5405251 - 2¹ = 5405249 is a prime.

Together with 5405249, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5405221) 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 as a sum of consecutive naturals, namely, 2702625 + 2702626.

It is an arithmetic number, because the mean of its divisors is an integer number (2702626).

Almost surely, 2^5405251 is an apocalyptic number.

5405251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5405251 is an equidigital number, since it uses as much as digits as its factorization.

5405251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 5405251 is about 2324.9195685012. The cubic root of 5405251 is about 175.4979126003.

The spelling of 5405251 in words is "five million, four hundred five thousand, two hundred fifty-one".