256022245 has 16 divisors (see below), whose sum is σ = 331289280. Its totient is φ = 189302400.

The previous prime is 256022233. The next prime is 256022257. The reversal of 256022245 is 542220652.

It is an interprime number because it is at equal distance from previous prime (256022233) and next prime (256022257).

It is not a de Polignac number, because 256022245 - 2⁵ = 256022213 is a prime.

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, 28971 + ... + 36760.

It is an arithmetic number, because the mean of its divisors is an integer number (20705580).

Almost surely, 2^256022245 is an apocalyptic number.

It is an amenable number.

256022245 is a deficient number, since it is larger than the sum of its proper divisors (75267035).

256022245 is a wasteful number, since it uses less digits than its factorization.

256022245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65796.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 256022245 is about 16000.6951411493. The cubic root of 256022245 is about 634.9788117840.

Adding to 256022245 its reverse (542220652), we get a palindrome (798242897).

The spelling of 256022245 in words is "two hundred fifty-six million, twenty-two thousand, two hundred forty-five".