55316761 has 4 divisors (see below), whose sum is σ = 55983312. Its totient is φ = 54650212.

The previous prime is 55316743. The next prime is 55316783. The reversal of 55316761 is 16761355.

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 55316761 - 2¹¹ = 55314713 is a prime.

It is a super-2 number, since 2×55316761² = 6119888095062242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55316731) 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, 333151 + ... + 333316.

It is an arithmetic number, because the mean of its divisors is an integer number (13995828).

Almost surely, 2^55316761 is an apocalyptic number.

It is an amenable number.

55316761 is a deficient number, since it is larger than the sum of its proper divisors (666551).

55316761 is an equidigital number, since it uses as much as digits as its factorization.

55316761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666550.

The product of its digits is 18900, while the sum is 34.

The square root of 55316761 is about 7437.5238487013. The cubic root of 55316761 is about 381.0239259527.

The spelling of 55316761 in words is "fifty-five million, three hundred sixteen thousand, seven hundred sixty-one".