52632509 has 4 divisors (see below), whose sum is σ = 52674816. Its totient is φ = 52590204.

The previous prime is 52632499. The next prime is 52632521. The reversal of 52632509 is 90523625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52632509 - 2²⁴ = 35855293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52632529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19229 + ... + 21794.

It is an arithmetic number, because the mean of its divisors is an integer number (13168704).

Almost surely, 2^52632509 is an apocalyptic number.

It is an amenable number.

52632509 is a deficient number, since it is larger than the sum of its proper divisors (42307).

52632509 is a wasteful number, since it uses less digits than its factorization.

52632509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42306.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 52632509 is about 7254.8266002710. The cubic root of 52632509 is about 374.7583842101.

The spelling of 52632509 in words is "fifty-two million, six hundred thirty-two thousand, five hundred nine".