5405649256 has 32 divisors (see below), whose sum is σ = 12264920640. Its totient is φ = 2180429568.

The previous prime is 5405649253. The next prime is 5405649281. The reversal of 5405649256 is 6529465045.

It is not an unprimeable number, because it can be changed into a prime (5405649251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2838150 + ... + 2840053.

It is an arithmetic number, because the mean of its divisors is an integer number (383278770).

Almost surely, 2^5405649256 is an apocalyptic number.

5405649256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5405649256 is an abundant number, since it is smaller than the sum of its proper divisors (6859271384).

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

5405649256 is a wasteful number, since it uses less digits than its factorization.

5405649256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5678233 (or 5678229 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The square root of 5405649256 is about 73523.1205540135. The cubic root of 5405649256 is about 1755.0222269190.

The spelling of 5405649256 in words is "five billion, four hundred five million, six hundred forty-nine thousand, two hundred fifty-six".