56783903 has 8 divisors (see below), whose sum is σ = 62000640. Its totient is φ = 51576280.

The previous prime is 56783899. The next prime is 56783921. The reversal of 56783903 is 30938765.

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 56783903 - 2² = 56783899 is a prime.

It is a super-3 number, since 3×56783903³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56783983) 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, 23108 + ... + 25446.

It is an arithmetic number, because the mean of its divisors is an integer number (7750080).

Almost surely, 2^56783903 is an apocalyptic number.

56783903 is a deficient number, since it is larger than the sum of its proper divisors (5216737).

56783903 is a wasteful number, since it uses less digits than its factorization.

56783903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 56783903 is about 7535.5094718274. The cubic root of 56783903 is about 384.3631524583.

The spelling of 56783903 in words is "fifty-six million, seven hundred eighty-three thousand, nine hundred three".