501005600551 has 2 divisors, whose sum is σ = 501005600552. Its totient is φ = 501005600550.

The previous prime is 501005600549. The next prime is 501005600567. The reversal of 501005600551 is 155006500105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 501005600551 - 2¹ = 501005600549 is a prime.

It is a super-2 number, since 2×501005600551² (a number of 24 digits) contains 22 as substring.

Together with 501005600549, 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 (501005600521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250502800275 + 250502800276.

It is an arithmetic number, because the mean of its divisors is an integer number (250502800276).

Almost surely, 2^501005600551 is an apocalyptic number.

501005600551 is a deficient number, since it is larger than the sum of its proper divisors (1).

501005600551 is an equidigital number, since it uses as much as digits as its factorization.

501005600551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 501005600551 in words is "five hundred one billion, five million, six hundred thousand, five hundred fifty-one".