52452561 has 32 divisors (see below), whose sum is σ = 84648960. Its totient is φ = 28252224.

The previous prime is 52452557. The next prime is 52452583. The reversal of 52452561 is 16525425.

It is not a de Polignac number, because 52452561 - 2² = 52452557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52452541) 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 31 ways as a sum of consecutive naturals, for example, 25186 + ... + 27188.

It is an arithmetic number, because the mean of its divisors is an integer number (2645280).

Almost surely, 2^52452561 is an apocalyptic number.

It is an amenable number.

52452561 is a deficient number, since it is larger than the sum of its proper divisors (32196399).

52452561 is a wasteful number, since it uses less digits than its factorization.

52452561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085.

The product of its digits is 12000, while the sum is 30.

The square root of 52452561 is about 7242.4140312468. The cubic root of 52452561 is about 374.3308029556.

Adding to 52452561 its reverse (16525425), we get a palindrome (68977986).

The spelling of 52452561 in words is "fifty-two million, four hundred fifty-two thousand, five hundred sixty-one".