55806763 has 4 divisors (see below), whose sum is σ = 58233168. Its totient is φ = 53380360.

The previous prime is 55806703. The next prime is 55806811. The reversal of 55806763 is 36760855.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55806763 - 2²¹ = 53709611 is a prime.

It is a super-2 number, since 2×55806763² = 6228789593076338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55806703) 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, 1213168 + ... + 1213213.

It is an arithmetic number, because the mean of its divisors is an integer number (14558292).

Almost surely, 2^55806763 is an apocalyptic number.

55806763 is a deficient number, since it is larger than the sum of its proper divisors (2426405).

55806763 is a wasteful number, since it uses less digits than its factorization.

55806763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426404.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 55806763 is about 7470.3924261045. The cubic root of 55806763 is about 382.1456709857.

The spelling of 55806763 in words is "fifty-five million, eight hundred six thousand, seven hundred sixty-three".