52805551 has 2 divisors, whose sum is σ = 52805552. Its totient is φ = 52805550.

The previous prime is 52805521. The next prime is 52805561. The reversal of 52805551 is 15550825.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52805551 - 2¹¹ = 52803503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52805521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26402775 + 26402776.

It is an arithmetic number, because the mean of its divisors is an integer number (26402776).

Almost surely, 2^52805551 is an apocalyptic number.

52805551 is a deficient number, since it is larger than the sum of its proper divisors (1).

52805551 is an equidigital number, since it uses as much as digits as its factorization.

52805551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 52805551 is about 7266.7428054115. The cubic root of 52805551 is about 375.1686376337.

The spelling of 52805551 in words is "fifty-two million, eight hundred five thousand, five hundred fifty-one".