65434556 has 48 divisors (see below), whose sum is σ = 136080000. Its totient is φ = 27195840.

The previous prime is 65434549. The next prime is 65434597. The reversal of 65434556 is 65543456.

It is a happy number.

It is a super-2 number, since 2×65434556² = 8563362237834272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22895 + ... + 25593.

It is an arithmetic number, because the mean of its divisors is an integer number (2835000).

Almost surely, 2^65434556 is an apocalyptic number.

It is an amenable number.

65434556 is an abundant number, since it is smaller than the sum of its proper divisors (70645444).

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

65434556 is a wasteful number, since it uses less digits than its factorization.

65434556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762 (or 2760 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

The square root of 65434556 is about 8089.1628738702. The cubic root of 65434556 is about 402.9666021208.

Subtracting 65434556 from its reverse (65543456), we obtain a square (108900 = 330²).

The spelling of 65434556 in words is "sixty-five million, four hundred thirty-four thousand, five hundred fifty-six".