65537420 has 48 divisors (see below), whose sum is σ = 148811040. Its totient is φ = 24101376.

The previous prime is 65537399. The next prime is 65537453. The reversal of 65537420 is 2473556.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 114896 + ... + 115464.

It is an arithmetic number, because the mean of its divisors is an integer number (3100230).

Almost surely, 2^65537420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65537420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74405520).

65537420 is an abundant number, since it is smaller than the sum of its proper divisors (83273620).

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

65537420 is a wasteful number, since it uses less digits than its factorization.

65537420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 65537420 is about 8095.5185133505. The cubic root of 65537420 is about 403.1776478722.

The spelling of 65537420 in words is "sixty-five million, five hundred thirty-seven thousand, four hundred twenty".