65025231 has 4 divisors (see below), whose sum is σ = 86700312. Its totient is φ = 43350152.

The previous prime is 65025229. The next prime is 65025251. The reversal of 65025231 is 13252056.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65025231 - 2¹ = 65025229 is a prime.

It is a super-2 number, since 2×65025231² = 8456561333206722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65025251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10837536 + ... + 10837541.

It is an arithmetic number, because the mean of its divisors is an integer number (21675078).

Almost surely, 2^65025231 is an apocalyptic number.

65025231 is a deficient number, since it is larger than the sum of its proper divisors (21675081).

65025231 is a wasteful number, since it uses less digits than its factorization.

65025231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21675080.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 65025231 is about 8063.8223566743. The cubic root of 65025231 is about 402.1245931965.

Adding to 65025231 its reverse (13252056), we get a palindrome (78277287).

It can be divided in two parts, 65025 and 231, that added together give a palindrome (65256).

The spelling of 65025231 in words is "sixty-five million, twenty-five thousand, two hundred thirty-one".