56181016 has 8 divisors (see below), whose sum is σ = 105339420. Its totient is φ = 28090504.

The previous prime is 56180989. The next prime is 56181017. The reversal of 56181016 is 61018165.

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56181017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3511306 + ... + 3511321.

Almost surely, 2^56181016 is an apocalyptic number.

It is an amenable number.

56181016 is a deficient number, since it is larger than the sum of its proper divisors (49158404).

56181016 is a wasteful number, since it uses less digits than its factorization.

56181016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022633 (or 7022629 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 56181016 is about 7495.3996557889. The cubic root of 56181016 is about 382.9980207457.

The spelling of 56181016 in words is "fifty-six million, one hundred eighty-one thousand, sixteen".