56156761 has 8 divisors (see below), whose sum is σ = 59181920. Its totient is φ = 53138592.

The previous prime is 56156743. The next prime is 56156767. The reversal of 56156761 is 16765165.

56156761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56156761 - 2¹¹ = 56154713 is a prime.

It is a super-2 number, since 2×56156761² = 6307163612022242, 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 56156761.

It is not an unprimeable number, because it can be changed into a prime (56156767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27181 + ... + 29173.

It is an arithmetic number, because the mean of its divisors is an integer number (7397740).

Almost surely, 2^56156761 is an apocalyptic number.

It is an amenable number.

56156761 is a deficient number, since it is larger than the sum of its proper divisors (3025159).

56156761 is a wasteful number, since it uses less digits than its factorization.

56156761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495.

The product of its digits is 37800, while the sum is 37.

The square root of 56156761 is about 7493.7814886745. The cubic root of 56156761 is about 382.9428956350.

The spelling of 56156761 in words is "fifty-six million, one hundred fifty-six thousand, seven hundred sixty-one".