256633002 has 32 divisors (see below), whose sum is σ = 571051200. Its totient is φ = 85431024.

The previous prime is 256632991. The next prime is 256633009. The reversal of 256633002 is 200336652.

256633002 is a `hidden beast` number, since 25 + 6 + 633 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (256633009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44649 + ... + 50067.

It is an arithmetic number, because the mean of its divisors is an integer number (17845350).

Almost surely, 2^256633002 is an apocalyptic number.

256633002 is an abundant number, since it is smaller than the sum of its proper divisors (314418198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256633002 is a wasteful number, since it uses less digits than its factorization.

256633002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307 (or 6301 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 256633002 is about 16019.7690994596. The cubic root of 256633002 is about 635.4833379622.

Adding to 256633002 its reverse (200336652), we get a palindrome (456969654).

The spelling of 256633002 in words is "two hundred fifty-six million, six hundred thirty-three thousand, two".