52641605 has 8 divisors (see below), whose sum is σ = 66885912. Its totient is φ = 39635968.

The previous prime is 52641599. The next prime is 52641607. The reversal of 52641605 is 50614625.

It can be written as a sum of positive squares in 4 ways, for example, as 3389281 + 49252324 = 1841^2 + 7018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52641605 - 2²⁰ = 51593029 is a prime.

It is a super-2 number, since 2×52641605² = 5542277153952050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52641607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309572 + ... + 309741.

It is an arithmetic number, because the mean of its divisors is an integer number (8360739).

Almost surely, 2^52641605 is an apocalyptic number.

It is an amenable number.

52641605 is a deficient number, since it is larger than the sum of its proper divisors (14244307).

52641605 is a wasteful number, since it uses less digits than its factorization.

52641605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619335.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 52641605 is about 7255.4534661867. The cubic root of 52641605 is about 374.7799716661.

The spelling of 52641605 in words is "fifty-two million, six hundred forty-one thousand, six hundred five".