52455391 has 8 divisors (see below), whose sum is σ = 53652960. Its totient is φ = 51270912.

The previous prime is 52455373. The next prime is 52455397. The reversal of 52455391 is 19355425.

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 52455391 - 2⁹ = 52454879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52455397) 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, 5070 + ... + 11428.

It is an arithmetic number, because the mean of its divisors is an integer number (6706620).

Almost surely, 2^52455391 is an apocalyptic number.

52455391 is a deficient number, since it is larger than the sum of its proper divisors (1197569).

52455391 is a wasteful number, since it uses less digits than its factorization.

52455391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6545.

The product of its digits is 27000, while the sum is 34.

The square root of 52455391 is about 7242.6094054560. The cubic root of 52455391 is about 374.3375349887.

Adding to 52455391 its sum of digits (34), we get a palindrome (52455425).

The spelling of 52455391 in words is "fifty-two million, four hundred fifty-five thousand, three hundred ninety-one".