65542288 has 20 divisors (see below), whose sum is σ = 145129600. Its totient is φ = 28089504.

The previous prime is 65542283. The next prime is 65542289. The reversal of 65542288 is 88224556.

It is a self number, because there is not a number n which added to its sum of digits gives 65542288.

It is not an unprimeable number, because it can be changed into a prime (65542283) 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, 292488 + ... + 292711.

It is an arithmetic number, because the mean of its divisors is an integer number (7256480).

Almost surely, 2^65542288 is an apocalyptic number.

It is an amenable number.

65542288 is an abundant number, since it is smaller than the sum of its proper divisors (79587312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65542288 is a wasteful number, since it uses less digits than its factorization.

65542288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585214 (or 585208 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The square root of 65542288 is about 8095.8191679409. The cubic root of 65542288 is about 403.1876300585.

The spelling of 65542288 in words is "sixty-five million, five hundred forty-two thousand, two hundred eighty-eight".