55761317 has 4 divisors (see below), whose sum is σ = 56947776. Its totient is φ = 54574860.

The previous prime is 55761227. The next prime is 55761347. The reversal of 55761317 is 71316755.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71316755 = 5 ⋅14263351.

It is a cyclic number.

It is not a de Polignac number, because 55761317 - 2⁸ = 55761061 is a prime.

It is a super-4 number, since 4×55761317⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55761347) 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, 593159 + ... + 593252.

It is an arithmetic number, because the mean of its divisors is an integer number (14236944).

Almost surely, 2^55761317 is an apocalyptic number.

It is an amenable number.

55761317 is a deficient number, since it is larger than the sum of its proper divisors (1186459).

55761317 is a wasteful number, since it uses less digits than its factorization.

55761317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186458.

The product of its digits is 22050, while the sum is 35.

The square root of 55761317 is about 7467.3500654516. The cubic root of 55761317 is about 382.0419099144.

The spelling of 55761317 in words is "fifty-five million, seven hundred sixty-one thousand, three hundred seventeen".