65437530 has 32 divisors (see below), whose sum is σ = 163880064. Its totient is φ = 16691136.

The previous prime is 65437499. The next prime is 65437579. The reversal of 65437530 is 3573456.

It is a junction number, because it is equal to n+sod(n) for n = 65437491 and 65437500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46729 + ... + 48108.

It is an arithmetic number, because the mean of its divisors is an integer number (5121252).

Almost surely, 2^65437530 is an apocalyptic number.

65437530 is an abundant number, since it is smaller than the sum of its proper divisors (98442534).

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

65437530 is a wasteful number, since it uses less digits than its factorization.

65437530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94870.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 65437530 is about 8089.3466979726. The cubic root of 65437530 is about 402.9727069711.

The spelling of 65437530 in words is "sixty-five million, four hundred thirty-seven thousand, five hundred thirty".