65390532 has 24 divisors (see below), whose sum is σ = 157500672. Its totient is φ = 21093600.

The previous prime is 65390519. The next prime is 65390537. The reversal of 65390532 is 23509356.

It is a junction number, because it is equal to n+sod(n) for n = 65390493 and 65390502.

It is not an unprimeable number, because it can be changed into a prime (65390537) 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, 87519 + ... + 88262.

It is an arithmetic number, because the mean of its divisors is an integer number (6562528).

Almost surely, 2^65390532 is an apocalyptic number.

65390532 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

65390532 is an abundant number, since it is smaller than the sum of its proper divisors (92110140).

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

65390532 is a wasteful number, since it uses less digits than its factorization.

65390532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175819 (or 175817 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 33.

The square root of 65390532 is about 8086.4412444536. The cubic root of 65390532 is about 402.8762106275.

Adding to 65390532 its reverse (23509356), we get a palindrome (88899888).

The spelling of 65390532 in words is "sixty-five million, three hundred ninety thousand, five hundred thirty-two".