56671737 has 8 divisors (see below), whose sum is σ = 79539360. Its totient is φ = 35792640.

The previous prime is 56671709. The next prime is 56671739. The reversal of 56671737 is 73717665.

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

It is not a de Polignac number, because 56671737 - 2⁶ = 56671673 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (56671739) 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, 497064 + ... + 497177.

It is an arithmetic number, because the mean of its divisors is an integer number (9942420).

Almost surely, 2^56671737 is an apocalyptic number.

56671737 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

56671737 is a deficient number, since it is larger than the sum of its proper divisors (22867623).

56671737 is a wasteful number, since it uses less digits than its factorization.

56671737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994263.

The product of its digits is 185220, while the sum is 42.

The square root of 56671737 is about 7528.0632967583. The cubic root of 56671737 is about 384.1099064199.

The spelling of 56671737 in words is "fifty-six million, six hundred seventy-one thousand, seven hundred thirty-seven".