65852540 has 36 divisors (see below), whose sum is σ = 149754024. Its totient is φ = 24313536.

The previous prime is 65852539. The next prime is 65852573. The reversal of 65852540 is 4525856.

It is a self number, because there is not a number n which added to its sum of digits gives 65852540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6362 + ... + 13121.

It is an arithmetic number, because the mean of its divisors is an integer number (4159834).

Almost surely, 2^65852540 is an apocalyptic number.

It is an amenable number.

65852540 is an abundant number, since it is smaller than the sum of its proper divisors (83901484).

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

65852540 is a wasteful number, since it uses less digits than its factorization.

65852540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19518 (or 19503 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 65852540 is about 8114.9577940985. The cubic root of 65852540 is about 403.8228073067.

The spelling of 65852540 in words is "sixty-five million, eight hundred fifty-two thousand, five hundred forty".