5000551 has 2 divisors, whose sum is σ = 5000552.
Its totient is φ = 5000550.
The previous prime is 5000549. The next prime is 5000563. The reversal of 5000551 is 1550005.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 5000551 - 21 = 5000549 is a prime.
Together with 5000549, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (5000581) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500275 + 2500276.
It is an arithmetic number, because the mean of its divisors is an integer number (2500276).
Almost surely, 25000551 is an apocalyptic number.
5000551 is a deficient number, since it is larger than the sum of its proper divisors (1).
5000551 is an equidigital number, since it uses as much as digits as its factorization.
5000551 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 125, while the sum is 16.
The square root of 5000551 is about 2236.1911814512.
The cubic root of 5000551 is about 171.0038757486.
Adding to 5000551 its reverse (1550005), we get a palindrome (6550556).
The spelling of 5000551 in words is "five million, five hundred fifty-one", and thus it is an aban number.