478249533 has 12 divisors (see below), whose sum is σ = 692459040. Its totient is φ = 318069576.

The previous prime is 478249529. The next prime is 478249537. The reversal of 478249533 is 335942874.

478249533 is a `hidden beast` number, since 4 + 78 + 2 + 49 + 533 = 666.

It is an interprime number because it is at equal distance from previous prime (478249529) and next prime (478249537).

It is not a de Polignac number, because 478249533 - 2² = 478249529 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478249537) 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, 59641 + ... + 67182.

It is an arithmetic number, because the mean of its divisors is an integer number (57704920).

Almost surely, 2^478249533 is an apocalyptic number.

It is an amenable number.

478249533 is a deficient number, since it is larger than the sum of its proper divisors (214209507).

478249533 is a wasteful number, since it uses less digits than its factorization.

478249533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127248 (or 127245 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 478249533 is about 21868.9170513768. The cubic root of 478249533 is about 782.0205846410.

The spelling of 478249533 in words is "four hundred seventy-eight million, two hundred forty-nine thousand, five hundred thirty-three".