256461552 has 50 divisors (see below), whose sum is σ = 742277888. Its totient is φ = 85486752.

The previous prime is 256461547. The next prime is 256461553. The reversal of 256461552 is 255164652.

256461552 is a `hidden beast` number, since 2 + 5 + 646 + 1 + 5 + 5 + 2 = 666.

256461552 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256461553) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 97648 + ... + 100239.

Almost surely, 2^256461552 is an apocalyptic number.

It is an amenable number.

256461552 is an abundant number, since it is smaller than the sum of its proper divisors (485816336).

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

256461552 is a wasteful number, since it uses less digits than its factorization.

256461552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197907 (or 197892 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 256461552 is about 16014.4170046867. The cubic root of 256461552 is about 635.3417896688.

The spelling of 256461552 in words is "two hundred fifty-six million, four hundred sixty-one thousand, five hundred fifty-two".