52561629 has 14 divisors (see below), whose sum is σ = 78807486. Its totient is φ = 35040600.

The previous prime is 52561627. The next prime is 52561643. The reversal of 52561629 is 92616525.

52561629 is a `hidden beast` number, since 5 + 25 + 6 + 1 + 629 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37234404 + 15327225 = 6102^2 + 3915^2 .

It is not a de Polignac number, because 52561629 - 2¹ = 52561627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52561593 and 52561602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52561627) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 35322 + ... + 36779.

Almost surely, 2^52561629 is an apocalyptic number.

It is an amenable number.

52561629 is a deficient number, since it is larger than the sum of its proper divisors (26245857).

52561629 is an frugal number, since it uses more digits than its factorization.

52561629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72119 (or 72104 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 52561629 is about 7249.9399307856. The cubic root of 52561629 is about 374.5900800717.

The spelling of 52561629 in words is "fifty-two million, five hundred sixty-one thousand, six hundred twenty-nine".