65256506 has 16 divisors (see below), whose sum is σ = 118449216. Its totient is φ = 26321856.

The previous prime is 65256463. The next prime is 65256517. The reversal of 65256506 is 60565256.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136856 + ... + 137331.

It is an arithmetic number, because the mean of its divisors is an integer number (7403076).

Almost surely, 2^65256506 is an apocalyptic number.

65256506 is a deficient number, since it is larger than the sum of its proper divisors (53192710).

65256506 is a wasteful number, since it uses less digits than its factorization.

65256506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274213.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 65256506 is about 8078.1499119539. The cubic root of 65256506 is about 402.6007741189.

It can be divided in two parts, 6525 and 6506, that added together give a palindrome (13031).

The spelling of 65256506 in words is "sixty-five million, two hundred fifty-six thousand, five hundred six".