65501331 has 8 divisors (see below), whose sum is σ = 99811584. Its totient is φ = 37429320.

The previous prime is 65501329. The next prime is 65501347. The reversal of 65501331 is 13310556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65501331 - 2¹ = 65501329 is a prime.

It is a super-2 number, since 2×65501331² = 8580848725543122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65501131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1559535 + ... + 1559576.

It is an arithmetic number, because the mean of its divisors is an integer number (12476448).

Almost surely, 2^65501331 is an apocalyptic number.

65501331 is a deficient number, since it is larger than the sum of its proper divisors (34310253).

65501331 is a wasteful number, since it uses less digits than its factorization.

65501331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119121.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 65501331 is about 8093.2892571562. The cubic root of 65501331 is about 403.1036293460.

Adding to 65501331 its reverse (13310556), we get a palindrome (78811887).

The spelling of 65501331 in words is "sixty-five million, five hundred one thousand, three hundred thirty-one".