56786761 has 4 divisors (see below), whose sum is σ = 58618624. Its totient is φ = 54954900.

The previous prime is 56786753. The next prime is 56786771. The reversal of 56786761 is 16768765.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56786761 - 2³ = 56786753 is a prime.

It is a super-2 number, since 2×56786761² = 6449472449742242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56786771) 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, 915885 + ... + 915946.

It is an arithmetic number, because the mean of its divisors is an integer number (14654656).

Almost surely, 2^56786761 is an apocalyptic number.

It is an amenable number.

56786761 is a deficient number, since it is larger than the sum of its proper divisors (1831863).

56786761 is a wasteful number, since it uses less digits than its factorization.

56786761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831862.

The product of its digits is 423360, while the sum is 46.

The square root of 56786761 is about 7535.6991049272. The cubic root of 56786761 is about 384.3696008319.

The spelling of 56786761 in words is "fifty-six million, seven hundred eighty-six thousand, seven hundred sixty-one".