1050020551 has 2 divisors, whose sum is σ = 1050020552. Its totient is φ = 1050020550.

The previous prime is 1050020549. The next prime is 1050020557. The reversal of 1050020551 is 1550200501.

It is a weak prime.

It is an emirp because it is prime and its reverse (1550200501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1050020551 - 2¹ = 1050020549 is a prime.

It is a super-2 number, since 2×1050020551² = 2205086315044687202, which contains 22 as substring.

Together with 1050020549, 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 (1050020557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525010275 + 525010276.

It is an arithmetic number, because the mean of its divisors is an integer number (525010276).

Almost surely, 2^1050020551 is an apocalyptic number.

1050020551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1050020551 is an equidigital number, since it uses as much as digits as its factorization.

1050020551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1050020551 is about 32404.0205993022. The cubic root of 1050020551 is about 1016.4029878705.

The spelling of 1050020551 in words is "one billion, fifty million, twenty thousand, five hundred fifty-one".