225711256 has 8 divisors (see below), whose sum is σ = 423208620. Its totient is φ = 112855624.

The previous prime is 225711251. The next prime is 225711281. The reversal of 225711256 is 652117522.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225711251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14106946 + ... + 14106961.

Almost surely, 2^225711256 is an apocalyptic number.

225711256 is the 8031-st centered heptagonal number.

It is an amenable number.

225711256 is a deficient number, since it is larger than the sum of its proper divisors (197497364).

225711256 is a wasteful number, since it uses less digits than its factorization.

225711256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28213913 (or 28213909 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 225711256 is about 15023.6898264042. The cubic root of 225711256 is about 608.8604147111.

Adding to 225711256 its reverse (652117522), we get a palindrome (877828778).

The spelling of 225711256 in words is "two hundred twenty-five million, seven hundred eleven thousand, two hundred fifty-six".