65413540 has 24 divisors (see below), whose sum is σ = 138422592. Its totient is φ = 25964640.

The previous prime is 65413529. The next prime is 65413547. The reversal of 65413540 is 4531456.

It is a junction number, because it is equal to n+sod(n) for n = 65413499 and 65413508.

It is not an unprimeable number, because it can be changed into a prime (65413547) 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, 9864 + ... + 15103.

It is an arithmetic number, because the mean of its divisors is an integer number (5767608).

Almost surely, 2^65413540 is an apocalyptic number.

It is an amenable number.

65413540 is an abundant number, since it is smaller than the sum of its proper divisors (73009052).

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

65413540 is a wasteful number, since it uses less digits than its factorization.

65413540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25107 (or 25105 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 65413540 is about 8087.8637476159. The cubic root of 65413540 is about 402.9234564526.

Adding to 65413540 its reverse (4531456), we get a palindrome (69944996).

The spelling of 65413540 in words is "sixty-five million, four hundred thirteen thousand, five hundred forty".