52415689 has 4 divisors (see below), whose sum is σ = 54694656. Its totient is φ = 50136724.

The previous prime is 52415683. The next prime is 52415729. The reversal of 52415689 is 98651425.

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 52415689 - 2³ = 52415681 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52415681) 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, 1139449 + ... + 1139494.

It is an arithmetic number, because the mean of its divisors is an integer number (13673664).

Almost surely, 2^52415689 is an apocalyptic number.

It is an amenable number.

52415689 is a deficient number, since it is larger than the sum of its proper divisors (2278967).

52415689 is a wasteful number, since it uses less digits than its factorization.

52415689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278966.

The product of its digits is 86400, while the sum is 40.

The square root of 52415689 is about 7239.8680236590. The cubic root of 52415689 is about 374.2430693253.

The spelling of 52415689 in words is "fifty-two million, four hundred fifteen thousand, six hundred eighty-nine".