65524428 has 18 divisors (see below), whose sum is σ = 165631284. Its totient is φ = 21841464.

The previous prime is 65524399. The next prime is 65524451. The reversal of 65524428 is 82442556.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1820123 = 65524428 / (6 + 5 + 5 + 2 + 4 + 4 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 65524392 and 65524401.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 910026 + ... + 910097.

It is an arithmetic number, because the mean of its divisors is an integer number (9201738).

Almost surely, 2^65524428 is an apocalyptic number.

It is an amenable number.

65524428 is an abundant number, since it is smaller than the sum of its proper divisors (100106856).

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

65524428 is a wasteful number, since it uses less digits than its factorization.

65524428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820133 (or 1820128 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 65524428 is about 8094.7160543159. The cubic root of 65524428 is about 403.1510044159.

The spelling of 65524428 in words is "sixty-five million, five hundred twenty-four thousand, four hundred twenty-eight".