52355551 has 2 divisors, whose sum is σ = 52355552. Its totient is φ = 52355550.

The previous prime is 52355549. The next prime is 52355557. The reversal of 52355551 is 15555325.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52355551 - 2¹ = 52355549 is a prime.

It is a super-2 number, since 2×52355551² = 5482207441027202, which contains 22 as substring.

Together with 52355549, 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 (52355557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26177775 + 26177776.

It is an arithmetic number, because the mean of its divisors is an integer number (26177776).

Almost surely, 2^52355551 is an apocalyptic number.

52355551 is a deficient number, since it is larger than the sum of its proper divisors (1).

52355551 is an equidigital number, since it uses as much as digits as its factorization.

52355551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18750, while the sum is 31.

The square root of 52355551 is about 7235.7135791848. The cubic root of 52355551 is about 374.0998880059.

The spelling of 52355551 in words is "fifty-two million, three hundred fifty-five thousand, five hundred fifty-one".