5403991056 has 80 divisors (see below), whose sum is σ = 14169134784. Its totient is φ = 1774559232.

The previous prime is 5403991049. The next prime is 5403991057. The reversal of 5403991056 is 6501993045.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5403990999 and 5403991017.

It is not an unprimeable number, because it can be changed into a prime (5403991057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054356 + ... + 1059468.

Almost surely, 2^5403991056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5403991056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7084567392).

5403991056 is an abundant number, since it is smaller than the sum of its proper divisors (8765143728).

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

5403991056 is a wasteful number, since it uses less digits than its factorization.

5403991056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448 (or 5442 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 5403991056 is about 73511.8429642462. The cubic root of 5403991056 is about 1754.8427556944.

The spelling of 5403991056 in words is "five billion, four hundred three million, nine hundred ninety-one thousand, fifty-six".