65243542 has 32 divisors (see below), whose sum is σ = 121363200. Its totient is φ = 25615008.

The previous prime is 65243539. The next prime is 65243593. The reversal of 65243542 is 24534256.

It is a congruent number.

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, 24009 + ... + 26587.

It is an arithmetic number, because the mean of its divisors is an integer number (3792600).

Almost surely, 2^65243542 is an apocalyptic number.

65243542 is a deficient number, since it is larger than the sum of its proper divisors (56119658).

65243542 is a wasteful number, since it uses less digits than its factorization.

65243542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740.

The product of its digits is 28800, while the sum is 31.

The square root of 65243542 is about 8077.3474606457. The cubic root of 65243542 is about 402.5741118369.

Adding to 65243542 its reverse (24534256), we get a palindrome (89777798).

The spelling of 65243542 in words is "sixty-five million, two hundred forty-three thousand, five hundred forty-two".