53488865 has 8 divisors (see below), whose sum is σ = 65921640. Its totient is φ = 41634432.

The previous prime is 53488859. The next prime is 53488873. The reversal of 53488865 is 56888435.

It can be written as a sum of positive squares in 4 ways, for example, as 10297681 + 43191184 = 3209^2 + 6572^2 .

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 53488865 - 2¹⁴ = 53472481 is a prime.

It is a super-2 number, since 2×53488865² = 5722117357976450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144380 + ... + 144749.

It is an arithmetic number, because the mean of its divisors is an integer number (8240205).

Almost surely, 2^53488865 is an apocalyptic number.

It is an amenable number.

53488865 is a deficient number, since it is larger than the sum of its proper divisors (12432775).

53488865 is a wasteful number, since it uses less digits than its factorization.

53488865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289171.

The product of its digits is 921600, while the sum is 47.

The square root of 53488865 is about 7313.6082066241. The cubic root of 53488865 is about 376.7799586988.

The spelling of 53488865 in words is "fifty-three million, four hundred eighty-eight thousand, eight hundred sixty-five".