263256471 has 12 divisors (see below), whose sum is σ = 382064280. Its totient is φ = 174671280.

The previous prime is 263256463. The next prime is 263256479. The reversal of 263256471 is 174652362.

263256471 is a `hidden beast` number, since 2 + 6 + 3 + 2 + 5 + 647 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (263256463) and next prime (263256479).

It is not a de Polignac number, because 263256471 - 2³ = 263256463 is a prime.

It is a super-3 number, since 3×263256471³ (a number of 26 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263256479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67416 + ... + 71213.

It is an arithmetic number, because the mean of its divisors is an integer number (31838690).

Almost surely, 2^263256471 is an apocalyptic number.

263256471 is a deficient number, since it is larger than the sum of its proper divisors (118807809).

263256471 is a wasteful number, since it uses less digits than its factorization.

263256471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138846 (or 138843 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 263256471 is about 16225.1801530830. The cubic root of 263256471 is about 640.9040535648.

The spelling of 263256471 in words is "two hundred sixty-three million, two hundred fifty-six thousand, four hundred seventy-one".