65812542 has 64 divisors (see below), whose sum is σ = 151891200. Its totient is φ = 18869760.

The previous prime is 65812519. The next prime is 65812567. The reversal of 65812542 is 24521856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55617 + ... + 56787.

It is an arithmetic number, because the mean of its divisors is an integer number (2373300).

Almost surely, 2^65812542 is an apocalyptic number.

65812542 is an abundant number, since it is smaller than the sum of its proper divisors (86078658).

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

65812542 is a wasteful number, since it uses less digits than its factorization.

65812542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241.

The product of its digits is 19200, while the sum is 33.

The square root of 65812542 is about 8112.4929583945. The cubic root of 65812542 is about 403.7410317925.

The spelling of 65812542 in words is "sixty-five million, eight hundred twelve thousand, five hundred forty-two".