52288457 has 4 divisors (see below), whose sum is σ = 56310660. Its totient is φ = 48266256.

The previous prime is 52288451. The next prime is 52288463. The reversal of 52288457 is 75488225.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (52288451) and next prime (52288463).

It can be written as a sum of positive squares in 2 ways, for example, as 16516096 + 35772361 = 4064^2 + 5981^2 .

It is a cyclic number.

It is not a de Polignac number, because 52288457 - 2¹⁶ = 52222921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52288451) 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, 2011082 + ... + 2011107.

It is an arithmetic number, because the mean of its divisors is an integer number (14077665).

Almost surely, 2^52288457 is an apocalyptic number.

It is an amenable number.

52288457 is a deficient number, since it is larger than the sum of its proper divisors (4022203).

52288457 is a wasteful number, since it uses less digits than its factorization.

52288457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022202.

The product of its digits is 179200, while the sum is 41.

The square root of 52288457 is about 7231.0757844182. The cubic root of 52288457 is about 373.9400158310.

The spelling of 52288457 in words is "fifty-two million, two hundred eighty-eight thousand, four hundred fifty-seven".