256007632 has 10 divisors (see below), whose sum is σ = 496014818. Its totient is φ = 128003808.

The previous prime is 256007617. The next prime is 256007651. The reversal of 256007632 is 236700652.

256007632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 229340736 + 26666896 = 15144^2 + 5164^2 .

It is a junction number, because it is equal to n+sod(n) for n = 256007594 and 256007603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000223 + ... + 8000254.

Almost surely, 2^256007632 is an apocalyptic number.

It is an amenable number.

256007632 is a deficient number, since it is larger than the sum of its proper divisors (240007186).

256007632 is a wasteful number, since it uses less digits than its factorization.

256007632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16000485 (or 16000479 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 256007632 is about 16000.2384982225. The cubic root of 256007632 is about 634.9667306438.

The spelling of 256007632 in words is "two hundred fifty-six million, seven thousand, six hundred thirty-two".