56687441 has 4 divisors (see below), whose sum is σ = 58219572. Its totient is φ = 55155312.

The previous prime is 56687419. The next prime is 56687443. The reversal of 56687441 is 14478665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50908225 + 5779216 = 7135^2 + 2404^2 .

It is a cyclic number.

It is not a de Polignac number, because 56687441 - 2¹⁸ = 56425297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56687443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766010 + ... + 766083.

It is an arithmetic number, because the mean of its divisors is an integer number (14554893).

Almost surely, 2^56687441 is an apocalyptic number.

It is an amenable number.

56687441 is a deficient number, since it is larger than the sum of its proper divisors (1532131).

56687441 is a wasteful number, since it uses less digits than its factorization.

56687441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532130.

The product of its digits is 161280, while the sum is 41.

The square root of 56687441 is about 7529.1062550611. The cubic root of 56687441 is about 384.1453826862.

The spelling of 56687441 in words is "fifty-six million, six hundred eighty-seven thousand, four hundred forty-one".