56481481 has 8 divisors (see below), whose sum is σ = 64912320. Its totient is φ = 48141168.

The previous prime is 56481479. The next prime is 56481493. The reversal of 56481481 is 18418465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56481481 - 2¹ = 56481479 is a prime.

It is a super-2 number, since 2×56481481² = 6380315391906722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56481481.

It is not an unprimeable number, because it can be changed into a prime (56481421) 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, 21286 + ... + 23791.

It is an arithmetic number, because the mean of its divisors is an integer number (8114040).

Almost surely, 2^56481481 is an apocalyptic number.

It is an amenable number.

56481481 is a deficient number, since it is larger than the sum of its proper divisors (8430839).

56481481 is a wasteful number, since it uses less digits than its factorization.

56481481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45263.

The product of its digits is 30720, while the sum is 37.

The square root of 56481481 is about 7515.4162226719. The cubic root of 56481481 is about 383.6795852370.

The spelling of 56481481 in words is "fifty-six million, four hundred eighty-one thousand, four hundred eighty-one".