256652306 has 4 divisors (see below), whose sum is σ = 384978462. Its totient is φ = 128326152.

The previous prime is 256652293. The next prime is 256652321. The reversal of 256652306 is 603256652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 200477281 + 56175025 = 14159^2 + 7495^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64163075 + ... + 64163078.

Almost surely, 2^256652306 is an apocalyptic number.

256652306 is a deficient number, since it is larger than the sum of its proper divisors (128326156).

256652306 is a wasteful number, since it uses less digits than its factorization.

256652306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128326155.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 256652306 is about 16020.3715936928. The cubic root of 256652306 is about 635.4992713024.

It can be divided in two parts, 2566 and 52306, that added together give a cube (54872 = 38³).

The spelling of 256652306 in words is "two hundred fifty-six million, six hundred fifty-two thousand, three hundred six".