65552430 has 64 divisors (see below), whose sum is σ = 161828928. Its totient is φ = 16988160.

The previous prime is 65552423. The next prime is 65552437. The reversal of 65552430 is 3425556.

It is an interprime number because it is at equal distance from previous prime (65552423) and next prime (65552437).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65552437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206632 + ... + 206948.

It is an arithmetic number, because the mean of its divisors is an integer number (2528577).

Almost surely, 2^65552430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65552430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80914464).

65552430 is an abundant number, since it is smaller than the sum of its proper divisors (96276498).

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

65552430 is a wasteful number, since it uses less digits than its factorization.

65552430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 65552430 is about 8096.4455163979. The cubic root of 65552430 is about 403.2084253759.

Adding to 65552430 its reverse (3425556), we get a palindrome (68977986).

The spelling of 65552430 in words is "sixty-five million, five hundred fifty-two thousand, four hundred thirty".