52566551 has 6 divisors (see below), whose sum is σ = 53881656. Its totient is φ = 51282800.

The previous prime is 52566541. The next prime is 52566557. The reversal of 52566551 is 15566525.

It is not a de Polignac number, because 52566551 - 2¹⁴ = 52550167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52566557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13955 + ... + 17316.

It is an arithmetic number, because the mean of its divisors is an integer number (8980276).

Almost surely, 2^52566551 is an apocalyptic number.

52566551 is a deficient number, since it is larger than the sum of its proper divisors (1315105).

52566551 is an equidigital number, since it uses as much as digits as its factorization.

52566551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31353 (or 31312 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The square root of 52566551 is about 7250.2793739276. The cubic root of 52566551 is about 374.6017722183.

It can be divided in two parts, 525 and 66551, that added together give a palindrome (67076).

The spelling of 52566551 in words is "fifty-two million, five hundred sixty-six thousand, five hundred fifty-one".