52561573 has 2 divisors, whose sum is σ = 52561574. Its totient is φ = 52561572.

The previous prime is 52561541. The next prime is 52561583. The reversal of 52561573 is 37516525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48692484 + 3869089 = 6978^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 52561573 - 2⁵ = 52561541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52561583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26280786 + 26280787.

It is an arithmetic number, because the mean of its divisors is an integer number (26280787).

Almost surely, 2^52561573 is an apocalyptic number.

It is an amenable number.

52561573 is a deficient number, since it is larger than the sum of its proper divisors (1).

52561573 is an equidigital number, since it uses as much as digits as its factorization.

52561573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31500, while the sum is 34.

The square root of 52561573 is about 7249.9360686836. The cubic root of 52561573 is about 374.5899470402.

The spelling of 52561573 in words is "fifty-two million, five hundred sixty-one thousand, five hundred seventy-three".