65420010 has 48 divisors (see below), whose sum is σ = 174250440. Its totient is φ = 17018880.

The previous prime is 65420009. The next prime is 65420011. The reversal of 65420010 is 1002456.

It is a happy number.

65420010 is a `hidden beast` number, since 654 + 2 + 0 + 0 + 10 = 666.

It is an interprime number because it is at equal distance from previous prime (65420009) and next prime (65420011).

It can be written as a sum of positive squares in 4 ways, for example, as 40947201 + 24472809 = 6399^2 + 4947^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (65420011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5175 + ... + 12554.

Almost surely, 2^65420010 is an apocalyptic number.

65420010 is an abundant number, since it is smaller than the sum of its proper divisors (108830430).

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

65420010 is a wasteful number, since it uses less digits than its factorization.

65420010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17783 (or 17780 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 65420010 is about 8088.2637197361. The cubic root of 65420010 is about 402.9367402917.

Adding to 65420010 its reverse (1002456), we get a palindrome (66422466).

The spelling of 65420010 in words is "sixty-five million, four hundred twenty thousand, ten".