65540424 has 32 divisors (see below), whose sum is σ = 172476000. Its totient is φ = 20696832.

The previous prime is 65540411. The next prime is 65540429. The reversal of 65540424 is 42404556.

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 65540391 and 65540400.

It is not an unprimeable number, because it can be changed into a prime (65540429) 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, 71409 + ... + 72320.

It is an arithmetic number, because the mean of its divisors is an integer number (5389875).

Almost surely, 2^65540424 is an apocalyptic number.

It is an amenable number.

65540424 is an abundant number, since it is smaller than the sum of its proper divisors (106935576).

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

65540424 is a wasteful number, since it uses less digits than its factorization.

65540424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143757 (or 143753 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 65540424 is about 8095.7040459740. The cubic root of 65540424 is about 403.1838078500.

The spelling of 65540424 in words is "sixty-five million, five hundred forty thousand, four hundred twenty-four".