56281384 has 8 divisors (see below), whose sum is σ = 105527610. Its totient is φ = 28140688.

The previous prime is 56281349. The next prime is 56281411. The reversal of 56281384 is 48318265.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40678884 + 15602500 = 6378^2 + 3950^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3517579 + ... + 3517594.

Almost surely, 2^56281384 is an apocalyptic number.

It is an amenable number.

56281384 is a deficient number, since it is larger than the sum of its proper divisors (49246226).

56281384 is a wasteful number, since it uses less digits than its factorization.

56281384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035179 (or 7035175 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 56281384 is about 7502.0919749094. The cubic root of 56281384 is about 383.2259617785.

It can be divided in two parts, 56281 and 384, that added together give a palindrome (56665).

The spelling of 56281384 in words is "fifty-six million, two hundred eighty-one thousand, three hundred eighty-four".