55762681 has 8 divisors (see below), whose sum is σ = 60672584. Its totient is φ = 50941440.

The previous prime is 55762673. The next prime is 55762687. The reversal of 55762681 is 18626755.

It can be written as a sum of positive squares in 4 ways, for example, as 13395600 + 42367081 = 3660^2 + 6509^2 .

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 55762681 - 2³ = 55762673 is a prime.

It is a super-2 number, since 2×55762681² = 6218953184615522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55762687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20850 + ... + 23371.

It is an arithmetic number, because the mean of its divisors is an integer number (7584073).

Almost surely, 2^55762681 is an apocalyptic number.

It is an amenable number.

55762681 is a deficient number, since it is larger than the sum of its proper divisors (4909903).

55762681 is a wasteful number, since it uses less digits than its factorization.

55762681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44331.

The product of its digits is 100800, while the sum is 40.

The square root of 55762681 is about 7467.4413958196. The cubic root of 55762681 is about 382.0450249826.

The spelling of 55762681 in words is "fifty-five million, seven hundred sixty-two thousand, six hundred eighty-one".